# Numbers season 3

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{{Use American English|date=March 2026}}
{{Use mdy dates|date=September 2023}}
{{Infobox television season
| season_number =
| bgcolour      = #9F2F20
| image         = Numb3rs season 3 DVD.png
| image_upright = 0.9
| image_alt     = 
| caption       = DVD cover
| starring      = 
| num_episodes  = 24
| network       = [CBS](/source/CBS)
| first_aired   = {{Start date|2006|9|22}}
| last_aired    = {{End date|2007|5|18}}
| prev_season   = [Season 2](/source/Numbers_season_2)
| next_season   = [Season 4](/source/Numbers_season_4)
| episode_list  = List of Numbers episodes 
}}
The third season of ''[Numbers](/source/Numbers_(TV_series))'', an American television series, premiered on September 22, 2006, with the episode "Spree" and had its season finale "The Janus List" on May 18, 2007. Charlie and Amita intensify their relationship, as do Larry and Megan. Amita has troubles adjusting in her new role as a CalSci professor, and Larry announces his leave of absence—he will be on the space station for six months, which greatly distresses Charlie. Dr. Mildred Finch, the newly appointed Chair of the CalSci Physics, Mathematics, and Astronomy Division, initially troubles Charlie and his colleagues, as Alan dates her. Don dates Agent Liz Warner, questions his ethics and self-worth, and receives counseling. Charlie sees Don's therapist and the two understand one another more. Alan engages in some FBI consulting with his knowledge of engineering, and Larry returns from the space station, although disillusioned. The finale wraps up with a revelation that shakes the whole team.

== Cast ==
=== Main ===
* [Rob Morrow](/source/Rob_Morrow) as [Don Eppes](/source/Don_Eppes)
* [David Krumholtz](/source/David_Krumholtz) as [Charlie Eppes](/source/Charlie_Eppes)
* [Judd Hirsch](/source/Judd_Hirsch) as [Alan Eppes](/source/Alan_Eppes)
* [Alimi Ballard](/source/Alimi_Ballard) as [David Sinclair](/source/David_Sinclair_(Numbers))
* [Navi Rawat](/source/Navi_Rawat) as [Amita Ramanujan](/source/Amita_Ramanujan)
* [Diane Farr](/source/Diane_Farr) as [Megan Reeves](/source/Megan_Reeves)
* [Dylan Bruno](/source/Dylan_Bruno) as [Colby Granger](/source/Colby_Granger)
* [Peter MacNicol](/source/Peter_MacNicol) as [Larry Fleinhardt](/source/Larry_Fleinhardt)

=== Recurring ===
* [Aya Sumika](/source/Aya_Sumika) as [Liz Warner](/source/Liz_Warner)
* [Lou Diamond Phillips](/source/Lou_Diamond_Phillips) as Ian Edgerton
* [Kathy Najimy](/source/Kathy_Najimy) as Dr. Mildred "Millie" Finch
* [Jay Baruchel](/source/Jay_Baruchel) as Oswald Kittner
* [Michelle Nolden](/source/Michelle_Nolden) as AUSA Robin Brooks
* [Will Patton](/source/Will_Patton) as Lt. Gary Walker
* [Wendell Pierce](/source/Wendell_Pierce) as William Bradford

=== Guest ===
{{Columns-list|colwidth=30em|
* [David Gallagher](/source/David_Gallagher) as Buck Winters
* [Kim Dickens](/source/Kim_Dickens) as Crystal Hoyle
* [Benito Martinez](/source/Benito_Martinez_(actor)) as Arthur Ruiz
* [Scott Menville](/source/Scott_Menville) as Tyler
* [Michelle Lee](/source/Michelle_Lee_(actress)) as Michelle Kim
* [Rachel York](/source/Rachel_York) as Marla Kinkirk
* [Cleo King](/source/Cleo_King) as Unemployment office worker
* [Amy Sloan](/source/Amy_Sloan) as Kari Syles
* [Bill Nye](/source/Bill_Nye) as Bill Waldie
* [Lauren Velez](/source/Lauren_Velez) as Claudia Gomez
* [Deirdre Lovejoy](/source/Deirdre_Lovejoy) as Daria Samson
* [Erica Gimpel](/source/Erica_Gimpel) as Principal Riva Bell
* [Tom Amandes](/source/Tom_Amandes) as Lawrence Dryden
* [Robin Weigert](/source/Robin_Weigert) as Elaine Tillman
* [George Newbern](/source/George_Newbern) as Brendan McCrary
* [Jason Beghe](/source/Jason_Beghe) as Reid Sarasin
* [Tito Ortiz](/source/Tito_Ortiz) as Tino Alva
* [Bruce McGill](/source/Bruce_McGill) as Austin
* [Michael DeLorenzo](/source/Michael_DeLorenzo) as Nacio Duque
* [William Sadler](/source/William_Sadler_(actor)) as J. Everett Tuttle
* [Jama Williamson](/source/Jama_Williamson) as Jane Aliano
* [Geoff Pierson](/source/Geoff_Pierson) as CEO Aaron Helm
* [Erin Cottrell](/source/Erin_Cottrell) as Caroline Williams
* [Lisa Vidal](/source/Lisa_Vidal) as Jessica Malloy
* [Jeremy Sisto](/source/Jeremy_Sisto) as AUSA Alvin Brickle
* [Catherine Dent](/source/Catherine_Dent) as Naomi Vaughn
}}

== Episodes ==
{{See also|List of Numbers episodes}}
<onlyinclude>{{Episode table |background = #9F2F20|overall=5 |season=5 |title=16 |director=14 |writer=21 |airdate=14 |prodcode=6 |viewers=10 |country= US |episodes=

{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 38
 |EpisodeNumber2 = 1
 |Title = [Spree](/source/Spree_(Numbers))
 |DirectedBy = [John Behring](/source/John_Behring)
 |WrittenBy = Ken Sanzel
 |Viewers = 11.35<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=092606_07 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=September 26, 2006 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20120329105628/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=092606_07 |archivedate=March 29, 2012 }}</ref>
 |OriginalAirDate = {{Start date|2006|9|22}}
 |ProdCode = 301
 |ShortSummary = Don is on the trail of a criminal couple consisting of a 30-year-old teacher Crystal Hoyle ([Kim Dickens](/source/Kim_Dickens)) and her 17-year-student Buck Winters ([David Gallagher](/source/David_Gallagher)) who are committing crimes across the country. Charlie and Amita's relationship changes and Alan decides to move out. The episode ends in a cliffhanger with Hoyle ([Kim Dickens](/source/Kim_Dickens)), the 30-year-old teacher, taking Megan hostage. [Lou Diamond Phillips](/source/Lou_Diamond_Phillips) appears again as Agent Ian Edgerton. 
The first of a two-episode story, followed by [Two Daughters](/source/Two_Daughters).
----
''Mathematics used:'' [Pursuit curves](/source/Curve_of_pursuit) and [geodesic sphere](/source/Geodesic_dome)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 39
 |EpisodeNumber2 = 2
 |Title = [Two Daughters](/source/Two_Daughters)
 |DirectedBy = [Alex Zakrzewski](/source/Alex_Zakrzewski)
 |WrittenBy = Ken Sanzel
 |Viewers = 10.69<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=100306_09 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=October 3, 2006 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20150110030736/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=100306_09 |archivedate=January 10, 2015 }}</ref>
 |OriginalAirDate = {{Start date|2006|9|29}}
 |ProdCode = 302
 |ShortSummary = The team jumps into action after learning that Crystal Hoyle ([Kim Dickens](/source/Kim_Dickens)) has taken Megan hostage and work against the clock and ever-decreasing odds to save Megan before it's too late. Sequel to [Spree](/source/Spree_(Numbers)).
----
''Mathematics used:'' [Polar spirals](/source/Spiral) and [parametric equations](/source/parametric_equations)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 40
 |EpisodeNumber2 = 3
 |Title = [Provenance](/source/Provenance_(Numbers))
 |DirectedBy = [Dennis Smith](/source/Dennis_Smith_(director))
 |WrittenBy = Don McGill
 |Viewers = 11.07<ref>{{cite web |url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=101006_05 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=October 10, 2006 |accessdate=February 10, 2010}}</ref>
 |OriginalAirDate = {{Start date|2006|10|6}}
 |ProdCode = 303
 |ShortSummary = A famous [Nazi-looted](/source/Nazi_plunder) [Camille Pissarro](/source/Camille_Pissarro) painting is stolen from a museum and a related murder surfaces. [Gena Rowlands](/source/Gena_Rowlands), [Garret Dillahunt](/source/Garret_Dillahunt), [Zach Grenier](/source/Zach_Grenier), [Benito Martinez](/source/Benito_Martinez_(actor)) and [Armin Shimerman](/source/Armin_Shimerman) guest star.
----
''Mathematics used:'' [Linear diophantine equations](/source/B%C3%A9zout's_identity), [curvelet analysis](/source/curvelet_analysis), [Craquelure](/source/Craquelure) and [discriminant analysis](/source/discriminant_analysis)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 41
 |EpisodeNumber2 = 4
 |Title = The Mole
 |DirectedBy = [Stephen Gyllenhaal](/source/Stephen_Gyllenhaal)
 |WrittenBy = Robert Port
 |Viewers = 10.89<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=101706_06 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=October 17, 2006 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20141010224630/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=101706_06 |archivedate=October 10, 2014 }}</ref>
 |OriginalAirDate = {{Start date|2006|10|13}}
 |ProdCode = 304
 |ShortSummary = The death of a Chinese interpreter outside a nightclub who was knocked down and fatally injured by a car at first appears to be an accident but Charlie's theory later suggests that it was murder and the resulting investigation leads Don and his team to investigate a possible [mole](/source/Mole_(espionage)) from within the [Department of Justice](/source/United_States_Department_of_Justice). Colby covers up information on Don's case for a friend ([Shawn Hatosy](/source/Shawn_Hatosy)) and is left stunned when he finds evidence suggesting that his old friend is the mole that Don and the team are looking for. Charlie is upset when Larry publishes a paper without his help.
----
''Mathematics used:'' [Steady Motion Algorithm](/source/Euler_angles), [Curtate cycloid](/source/Curtate_cycloid), [symmetry](/source/symmetry) and [combinatorics](/source/combinatorics)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 42
 |EpisodeNumber2 = 5
 |Title = Traffic
 |DirectedBy = [J. Miller Tobin](/source/J._Miller_Tobin)
 |WrittenBy = [Nicolas Falacci](/source/Nicolas_Falacci) & [Cheryl Heuton](/source/Cheryl_Heuton)
 |Viewers = 11.95<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=102406_05 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=October 24, 2006 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20141011054814/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=102406_05 |archivedate=October 11, 2014 }}</ref>
 |OriginalAirDate = {{Start date|2006|10|20}}
 |ProdCode = 305
 |ShortSummary = A series of violent highway attacks which appear to be random leaves Don and his team deeply puzzled.
----
''Mathematics used:'' [Randomness](/source/Randomness), [partial differential equations](/source/partial_differential_equations) and [traffic flow](/source/traffic_flow)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 43
 |EpisodeNumber2 = 6
 |Title = Longshot
 |DirectedBy = John Behring
 |WrittenBy = J. David Harden
 |Viewers = 11.09<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=103106_10 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=October 31, 2006 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20090227104657/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=103106_10 |archivedate=February 27, 2009 }}</ref>
 |OriginalAirDate = {{Start date|2006|10|27}}
 |ProdCode = 306
 |ShortSummary = The team investigates the death of a man armed with a sophisticated statistical analysis that can identify the winning horse at a race track. [Philip Casnoff](/source/Philip_Casnoff) guest stars.

''First appearance of:''  [Aya Sumika](/source/Aya_Sumika) in the recurring role of FBI Agent Liz Warner.
----
''Mathematics used:'' [Probability](/source/Probability), [arbitrage betting](/source/arbitrage_betting) and [data mining](/source/data_mining)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 44
 |EpisodeNumber2 = 7
 |Title = Blackout
 |DirectedBy = [Scott Lautanen](/source/Scott_Lautanen)
 |WrittenBy = Andrew Dettman
 |Viewers = 11.08<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=110706_05 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=November 7, 2006 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20150311233345/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=110706_05 |archivedate=March 11, 2015 }}</ref>
 |OriginalAirDate = {{Start date|2006|11|3}}
 |ProdCode = 307
 |ShortSummary = After an attack on a power station leaves parts of Los Angeles in the dark, the team must find the assailant's real target.
----
''Mathematics used:'' [Set Theory](/source/Set_Theory), [Center of mass](/source/Center_of_mass), [harmonic series](/source/Harmonic_series_(mathematics)), [directed graph](/source/Graph_(data_structure)), [Load flow analysis](/source/Power_flow_study) and [Dantzig-Wolfe Decomposition](/source/Simplex_Algorithm)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 45
 |EpisodeNumber2 = 8
 |Title = Hardball
 |DirectedBy = [Fred Keller](/source/Frederick_King_Keller)
 |WrittenBy = Nicolas Falacci & Cheryl Heuton
 |Viewers = 11.76<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=111406_09 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=November 14, 2006 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20150311233359/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=111406_09 |archivedate=March 11, 2015 }}</ref>
 |OriginalAirDate = {{Start date|2006|11|10}}
 |ProdCode = 308
 |ShortSummary = A minor league baseball player trying to get back to the majors is found dead of steroid abuse, leading the investigators to an unusual chain of suspects. [Jay Baruchel](/source/Jay_Baruchel) portrays Oswald Kittner. [Bill Nye](/source/Bill_Nye) makes his second appearance in the recurring role of Charlie's CalSci colleague engineering professor Bill Waldie. [Jon Hamm](/source/Jon_Hamm) also guest stars.

----
''Mathematics used:'' [Sabermetrics](/source/Sabermetrics) and [Shiryaev](/source/Albert_Shiryaev)-Roberts [change-point analysis](/source/change-point_analysis)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 46
 |EpisodeNumber2 = 9
 |Title = Waste Not
 |DirectedBy = J. Miller Tobin
 |WrittenBy = [Julie Hébert](/source/Julie_H%C3%A9bert)
 |Viewers = 10.73<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=112106_06 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=November 21, 2006 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20150218024110/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=112106_06 |archivedate=February 18, 2015 }}</ref>
 |OriginalAirDate = {{Start date|2006|11|17}}
 |ProdCode = 309
 |ShortSummary = Mysterious [cancer cluster](/source/cancer_cluster)s are found around a number of elementary schools whose playgrounds were all paved by the same company. A new CalSci administrator ([Kathy Najimy](/source/Kathy_Najimy) in her first appearance as recurring character Dr. Mildred Finch) annoys Charlie and his colleagues, while Alan dates her. [Joshua Malina](/source/Joshua_Malina), [Bob Gunton](/source/Bob_Gunton), [Deirdre Lovejoy](/source/Deirdre_Lovejoy), and [Erica Gimpel](/source/Erica_Gimpel) also guest star.
----
''Mathematics used:'' [Groundwater flow equation](/source/Groundwater_flow_equation), [cancer cluster](/source/cancer_cluster)s, [seismic tomography](/source/seismic_tomography) and [Kac–Moody algebra](/source/Kac%E2%80%93Moody_algebra)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 47
 |EpisodeNumber2 = 10
 |Title = Brutus
 |DirectedBy = [Oz Scott](/source/Oz_Scott)
 |WrittenBy = Ken Sanzel
 |Viewers = 11.73<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=112806_08 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=November 28, 2006 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20141106163045/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=112806_08 |archivedate=November 6, 2014 }}</ref>
 |OriginalAirDate = {{Start date|2006|11|24}}
 |ProdCode = 310
 |ShortSummary = A California State Senator and a psychiatrist are murdered; neither have much in common with the other except for one thing...they both turn up dead on Don's watch. While the circumstances of their deaths are different, Don thinks the two murders are related, and tries to prove his hunch right. What he finds may bring to light a deep secret the government has been hiding for years. [Tom Amandes](/source/Tom_Amandes) guest stars.
----
''Mathematics used:'' [Network flow](/source/Flow_network), [network theory](/source/network_theory), [Euclid's Orchard](/source/Euclid's_orchard) and [target selection theory](/source/target_selection_theory)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 48
 |EpisodeNumber2 = 11
 |Title = [Killer Chat](/source/Killer_Chat_(Numbers))
 |DirectedBy = Chris Hartwill
 |WrittenBy = Don McGill
 |Viewers = 11.23<ref>{{cite web |url=http://www.thefutoncritic.com/news.aspx?id=20061219cbs01 |title=CBS Rolls a Lucky 13 |publisher=The Futon Critic |date=December 19, 2006 |accessdate=February 10, 2010}}</ref>
 |OriginalAirDate = {{Start date|2006|12|15}}
 |ProdCode = 311
 |ShortSummary = Don and Charlie track a killer who has murdered several sex predators. The predators took advantage of teenage girls they met in chat rooms. Meanwhile, Larry is ready to begin an adventure with NASA. Guest stars include [Robin Weigert](/source/Robin_Weigert), and astronaut [Buzz Aldrin](/source/Buzz_Aldrin) as himself in a non-speaking cameo appearance.
----
''Mathematics used:'' [Statistical Textual Analysis](/source/Text_mining) and [principal components analysis](/source/principal_components_analysis)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 49
 |EpisodeNumber2 = 12
 |Title = [Nine Wives](/source/Nine_Wives)
 |DirectedBy = Julie Hébert
 |WrittenBy = Julie Hébert
 |Viewers = 12.35<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=010907_03 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=January 9, 2007 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20081221203520/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=010907_03 |archivedate=December 21, 2008 }}</ref>
 |OriginalAirDate = {{Start date|2007|1|5}}
 |ProdCode = 312
 |ShortSummary = Don, Charlie, and the team search for a polygamist who is on the FBI's Ten Most Wanted List for rape and murder. Guest stars include [Teri Polo](/source/Teri_Polo), [Joshua Malina](/source/Joshua_Malina) and [Anne Dudek](/source/Anne_Dudek).
----
''Mathematics used:'' [Lévy flight](/source/L%C3%A9vy_flight)s, [Inbreeding coefficient](/source/Inbreeding_coefficient)s and [kinship chain](/source/Alliance_theory)s
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 50
 |EpisodeNumber2 = 13
 |Title = Finders Keepers
 |DirectedBy = [Colin Bucksey](/source/Colin_Bucksey)
 |WrittenBy = Andrew Dettman
 |Viewers = 11.58<ref>{{cite web |url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=011707_08 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=January 17, 2007 |accessdate=February 10, 2010}}</ref>
 |OriginalAirDate = {{Start date|2007|1|12}}
 |ProdCode = 313
 |ShortSummary = After an extremely expensive yacht sinks in the middle of a race, Charlie finds himself caught between a rock and a hard place when both Don and the NSA need his help on the case. [David Clennon](/source/David_Clennon), [Jason Beghe](/source/Jason_Beghe), and [Titus Welliver](/source/Titus_Welliver) guest star. 
----
''Mathematics used:'' [Fluid dynamics](/source/Fluid_dynamics), [constraint](/source/Constraint_(mathematics)) and [optimization](/source/Optimization_(mathematics))
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 51
 |EpisodeNumber2 = 14
 |Title = Take Out
 |DirectedBy = [Leslie Libman](/source/Leslie_Libman)
 |WrittenBy = Sean Crouch
 |Viewers = 10.91<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=020607_05 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=February 6, 2007 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20141209232149/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=020607_05 |archivedate=December 9, 2014 }}</ref>
 |OriginalAirDate = {{Start date|2007|2|2}}
 |ProdCode = 314
 |ShortSummary = When two police officers are killed while eating dinner out, Charlie tries to figure out where the killers will strike next while Don's superiors make him see the department shrink ([Wendell Pierce](/source/Wendell_Pierce)) to help him deal with the aftermath of the Crystal Hoyle Case. [José Zúñiga](/source/Jos%C3%A9_Z%C3%BA%C3%B1iga_(actor)) guest stars.
----
''Mathematics used:'' [Outliers](/source/Outliers) and [data mining](/source/data_mining)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 52
 |EpisodeNumber2 = 15
 |Title = End of Watch
 |DirectedBy = [Michael Watkins](/source/Michael_W._Watkins)
 |WrittenBy = Robert Port & Mark Llewellyn
 |Viewers = 11.23<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=021307_05 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=February 13, 2007 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20100528010254/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=021307_05 |archivedate=May 28, 2010 }}</ref>
 |OriginalAirDate = {{Start date|2007|2|9}}
 |ProdCode = 315
 |ShortSummary = Don and the team reopen a cold case when a bunch of kids playing in an abandoned empty construction site discover a police badge. When Charlie joins the investigation, they attempt to track down the owner of the badge, a police officer who has been missing for seventeen years but when the team discover that the dead cop was on his way to Internal Affairs, the investigation takes a turn. Meanwhile, Alan is informed that he's being sued. [Lance Reddick](/source/Lance_Reddick) and [Hassan Johnson](/source/Hassan_Johnson) guest star; [Will Patton](/source/Will_Patton) makes another appearance as LAPD officer Lt. Gary Walker.
----
''Mathematics used:'' [Laser Swath Mapping](/source/LIDAR) and [quantum mechanics](/source/quantum_mechanics)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 53
 |EpisodeNumber2 = 16
 |Title = Contenders
 |DirectedBy = Alex Zakrzewski
 |WrittenBy = J. David Harden
 |Viewers = 10.69<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=022107_05 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=February 21, 2007 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20150311231333/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=022107_05 |archivedate=March 11, 2015 }}</ref>
 |OriginalAirDate = {{Start date|2007|2|16}}
 |ProdCode = 316
 |ShortSummary = One of David's closest friends is called into question after a man dies during a mixed martial arts sparring match. When it turns out that this is not the first time such an event has happened, things look even worse. Charlie is busy practicing what little he knows about poker, so he can take Larry's spot in a tournament. [Steven Culp](/source/Steven_Culp), [Lauren Vélez](/source/Lauren_V%C3%A9lez), [Bruce McGill](/source/Bruce_McGill) and [Arye Gross](/source/Arye_Gross) guest star.
''Mathematics used:'' [Kruskal's algorithm](/source/Kruskal's_algorithm) and [Flow network](/source/Flow_network)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 54
 |EpisodeNumber2 = 17
 |Title = One Hour
 |DirectedBy = J. Miller Tobin
 |WrittenBy = Ken Sanzel
 |Viewers = 11.02<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=022707_06 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=February 27, 2007 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20150311231358/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=022707_06 |archivedate=March 11, 2015 }}</ref>
 |OriginalAirDate = {{Start date|2007|2|23}}
 |ProdCode = 317
 |ShortSummary = Don talks to his departmental therapist ([Wendell Pierce](/source/Wendell_Pierce)) again, and while he's gone, the team races against time to find an eleven-year-old boy being held hostage on a $3 million ransom. [Vincent Laresca](/source/Vincent_Laresca) and [Michael DeLorenzo](/source/Michael_DeLorenzo) also guest star.
----
''Mathematics used:'' ['Cake-cutting' algorithm](/source/fair_division), [logic maze](/source/logic_maze) and [state diagram](/source/state_diagram)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 55
 |EpisodeNumber2 = 18
 |Title = [Democracy](/source/Democracy_(Numbers))
 |DirectedBy = [Steve Boyum](/source/Steve_Boyum)
 |WrittenBy = Nicolas Falacci & Cheryl Heuton
 |Viewers = 10.29<ref>{{cite web |url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=031307_04 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=March 13, 2007 |accessdate=February 10, 2010}}</ref>
 |OriginalAirDate = {{Start date|2007|3|9}}
 |ProdCode = 318
 |ShortSummary = Several area murders seem to be tied to voter fraud. Don, Charlie, and the team must find the killers before they strike again. [Jay Baruchel](/source/Jay_Baruchel) and [Joshua Malina](/source/Joshua_Malina) again appear in recurring roles; [William Sadler](/source/William_Sadler_(actor)) and [Kelli O'Hara](/source/Kelli_O'Hara) also guest star.
----
''Mathematics used:'' Statistics, [probability theory](/source/probability_theory), [metadata](/source/metadata) and [organizational theory](/source/Organizational_studies)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 56
 |EpisodeNumber2 = 19
 |Title = Pandora's Box
 |DirectedBy = [Dennis Smith](/source/Dennis_Smith_(director))
 |WrittenBy = [Andrew Black](/source/Andrew_Black_(director))
 |Viewers = 10.74<ref>{{cite web |url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=040307_05 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=April 3, 2007 |accessdate=February 10, 2010}}</ref>
 |OriginalAirDate = {{Start date|2007|3|30}}
 |ProdCode = 319
 |ShortSummary = When a jet crashes in the middle of a forest, Charlie suspects that there is more to the crash than meets the eye. [Lou Diamond Phillips](/source/Lou_Diamond_Phillips) appears again as FBI tracker Agent Ian Edgerton; [D.W. Moffett](/source/D.W._Moffett) also guest stars.
----
''Mathematics used:'' [Ito-Stratonovich drift integrals](/source/Stochastic_differential_equations) and [wavelet](/source/wavelet) [deconvolution](/source/deconvolution)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 57
 |EpisodeNumber2 = 20
 |Title = Burn Rate
 |DirectedBy = Frederick K. Keller
 |WrittenBy = Don McGill
 |Viewers = 10.93<ref>{{cite web |url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=041007_06 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=April 10, 2007 |accessdate=February 10, 2010}}</ref>
 |OriginalAirDate = {{Start date|2007|4|6}}
 |ProdCode = 320
 |ShortSummary = Don and Charlie hunt for a serial letter bomber and disagree over whether a key suspect, a physics professor ([Matt Malloy](/source/Matt_Malloy)) working as a consultant on explosives for the Department of Defense who eluded conviction once before, is responsible for the latest murder. [Lisa Vidal](/source/Lisa_Vidal) and [Kyle Howard](/source/Kyle_Howard) also appear.
----
''Mathematics used:'' [Explosions](/source/Explosions), [paradigm shift](/source/paradigm_shift), [coherence](/source/coherence_(physics)) and [outliers](/source/outliers)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 58
 |EpisodeNumber2 = 21
 |Title = [The Art of Reckoning](/source/The_Art_of_Reckoning_(Numbers))
 |DirectedBy = John Behring
 |WrittenBy = Julie Hébert
 |Viewers = 10.15<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=050107_08 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=May 1, 2007 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20150311232139/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=050107_08 |archivedate=March 11, 2015 }}</ref>
 |OriginalAirDate = {{Start date|2007|4|27}}
 |ProdCode = 321
 |ShortSummary = When a former mob hit man on death row suddenly has a change of heart and agrees to confess to his crimes, Don has an uneasy feeling about the whole affair. Larry ([Peter MacNicol](/source/Peter_MacNicol)) returns from his NASA mission. [Jeremy Sisto](/source/Jeremy_Sisto), [Wood Harris](/source/Wood_Harris) and [Bruce MacVittie](/source/Bruce_MacVittie) guest star. [Kathy Najimy](/source/Kathy_Najimy) makes her final appearance of the season as Dr. Millie Finch.
----
''Mathematics used:'' [Probability theory](/source/Probability_theory) and [tit for tat](/source/tit_for_tat)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 59
 |EpisodeNumber2 = 22
 |Title = Under Pressure
 |DirectedBy = J. Miller Tobin
 |WrittenBy = Andrew Dettman
 |Viewers = 9.51<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=050807_09 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=May 8, 2007 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20150311232203/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=050807_09 |archivedate=March 11, 2015 }}</ref>
 |OriginalAirDate = {{Start date|2007|5|4}}
 |ProdCode = 322
 |ShortSummary = Don, Charlie and the team take on an unknown group of terrorists who may be using nerve gas to undermine the city's water supply. [James McDaniel](/source/James_McDaniel) and [Erik Palladino](/source/Erik_Palladino) guest star.
----
''Mathematics used:'' [Social network analysis](/source/Social_network_analysis)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 60
 |EpisodeNumber2 = 23
 |Title = Money for Nothing
 |DirectedBy = Stephen Gyllenhaal
 |WrittenBy = Nicolas Falacci & Cheryl Heuton
 |Viewers = 10.03<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=051507_13 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=May 15, 2007 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20150311232219/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=051507_13 |archivedate=March 11, 2015 }}</ref>
 |OriginalAirDate = {{Start date|2007|5|11}}
 |ProdCode = 323
 |ShortSummary = A truck loaded with medical relief supplies and $50 million cash is stolen, and someone other than the FBI wants to recover the hijacked shipment. Don and the team find themselves being pitted against blackmarketeers in a race for the supplies and cash. [William Russ](/source/William_Russ), [Wendell Pierce](/source/Wendell_Pierce), [LisaGay Hamilton](/source/LisaGay_Hamilton), and [William Shockley](/source/William_Shockley_(actor)) guest star. 
----
''Mathematics used:'' [Greedy algorithm](/source/Greedy_algorithm) and [Dijkstra's algorithm](/source/Dijkstra's_algorithm)
 |LineColor = 9F2F20
}}
{{Episode list/sublist|Numbers season 3
 |EpisodeNumber = 61
 |EpisodeNumber2 = 24
 |Title = [The Janus List](/source/The_Janus_List)
 |DirectedBy = John Behring
 |WrittenBy = Robert Port & Ken Sanzel
 |Viewers = 10.18<ref>{{cite web|url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=052207_06 |title=Weekly Program Rankings |publisher=[ABC Medianet](/source/American_Broadcasting_Company) |date=May 22, 2007 |accessdate=February 10, 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20100528010145/http://abcmedianet.com/web/dnr/dispDNR.aspx?id=052207_06 |archivedate=May 28, 2010 }}</ref>
 |OriginalAirDate = {{Start date|2007|5|18}}
 |ProdCode = 324
 |ShortSummary = In the wake of a deadly standoff with a mysterious, yet brilliant bomber, Don and Charlie discover that he was poisoned to keep him from exposing a secret while the team are left reeling and stunned after learning that one of their own is a traitor, a revelation that threatens to change the team forever... [Martin Jarvis](/source/Martin_Jarvis_(actor)), [Shawn Hatosy](/source/Shawn_Hatosy), and [James Frain](/source/James_Frain) guest star.
----
''Mathematics used:'' [Merkle-Hellman](/source/Merkle-Hellman), [Wheat and Chessboard Problem](/source/Wheat_and_Chessboard_Problem), [straddling checkerboard](/source/straddling_checkerboard), [substitution cipher](/source/substitution_cipher), [Bacon's cipher](/source/Bacon's_cipher), [knapsack problem](/source/knapsack_problem) and [Lorentz force](/source/Lorentz_force)
 |LineColor = 9F2F20
}}
}}</onlyinclude>

== References ==
NOTE: Refs Need Archive Backup URLs @ https://archive.org/web/
{{Reflist|30em}}

== External links ==
* {{IMDb episodes|0433309|Numbers}}

{{Numbers (TV series)}}

{{DEFAULTSORT:Numbers Episodes Season 3}}
3
Category:2006 American television seasons
Category:2007 American television seasons

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Adapted from the Wikipedia article [Numbers season 3](https://en.wikipedia.org/wiki/Numbers_season_3) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Numbers_season_3?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.