Launched in 1986 by Bob Layton and Jackson Guice as a spin-off from the X-Men franchise, X-Factor was a team formed by the five original X-Men – Angel, Beast, Cyclops, Jean Grey (Marvel Girl), and Iceman – in response to the outlaw status of the then-current X-Men team.
The five original members X-Men disassociate with the current team because Professor X had placed Magneto as its leader. Quickly, they decide to set up a business advertised as mutant-hunters for hire in New York City, pretending to be “normal” (non-superpowered) humans to their clients. Eventually, the X-Factor team decides that the “mutant hunter” angle was bad for everybody and stops. Louise Simonson took over the title (with art by Walt Simonson) and quickly introduced Apocalypse and other major elements of the X-Mythos.
At that time, the series was massively connected to the other X-Titles and events. In 1991, the original members of X-Factor rejoined the main X-Men team. Marvel didn’t kill the title though. Peter David became the main writer (with art by Larry Stroman) and began by reintroducing X-Factor with new members (with Havok, Multiple Man, Polaris, Quicksilver, Strong Guy, Valerie Cooper, and Wolfsbane).
Being part of the X-Men Universe, you can find how to read X-Force with the other X-series in our complete X-Men Reading Order.
X-Factor Reading Order
X-Factor Volume 1 (1986-1998)
A new way to collect X-Factor! In 2024, Marvel Comics will release the first issues of X-Factor Vol. 1 in Omnibus:
- X-Factor: The Original X-Men Omnibus Vol. 1
Collects Avengers (1963) #263; Fantastic Four (1961) #286; X-Factor (1986) #1-26; X-Factor Annual (1986) #1-2; Iron Man Annual (1970) #8; Amazing Spider-Man (1963) #282; Thor (1966) #373-374, 377-378; Power Pack (1984) #27, 35; Mephisto Vs. (1987) #2; Incredible Hulk (1968) #336-337; Classic X-Men (1986) #8, 43; Secret Wars II (1985) #5; material from Marvel Fanfare (1982) #40.
You can also find the first 60 issues from Volume 1 collected in the “Essential” collection, a black-and-white reprint collection.
- Essential X-Factor Vol. 1
Collects X-Factor #1–16, Annual #1; Avengers #263; Fantastic Four #286; The Mighty Thor #373–374; Power Pack #27 (black and white print) - Essential X-Factor Vol. 2
Collects X-Factor #17–35, Annual #2; Thor #378 - Essential X-Factor Vol. 3
Collects X-Factor #36–50, Annual #3; Uncanny X-Men #242–243. - Essential X-Factor vol. 4
Collects X-Factor #51–59, Annual #4–5; X-Factor: Prisoner of Love; Marvel Fanfare #50; material from Fantastic Four Annual # 23, New Mutants Annual #6, Uncanny X-Men Annual #14. - Essential X-Factor vol. 5
Collects X-Factor #60–70, Annual #6; Uncanny X-Men #270–272, 280; material from Uncanny X-Men Annual #15, New Mutants #95–97, material from New Mutants Annual #7.
- X-Factor Epic Collection: Genesis & Apocalypse
Collects X-Factor #1–9 and Annual #1; Avengers #263; Fantastic Four #286; Iron Man Annual #8; Amazing Spider-Man #282; and Material from Classic X-Men #8 and #43.
- X-Men: Mutant Massacre Omnibus
Collects Uncanny X-Men #210–219, Annual #11; New Mutants #46; X-Factor #9-17, Annual #2; Thor #373–374, 377-378; Power Pack #27; Daredevil #238; Fantastic Four vs. the X-Men #1-4; X-Men vs. the Avengers #1-4.- X-Factor #9–11 are also collected in X-Men Milestones: Mutant Massacre.
- X-Factor #12-16 can also be found in Essential X-Factor, Vol. 1.
- X-Men: Fall of the Mutants Omnibus
Collects Uncanny X-Men #220–227; New Mutants #55–61; X-Factor #18–26; Captain America #339; Daredevil #252; Fantastic Four #312; Incredible Hulk (vol. 2) #340; Power Pack #35.- X-Factor #24-26 are also collected in X-Men Milestones: Fall of the Mutants.
- X-Men: Inferno Prologue
Collects X-Factor #27-32, Annual #3; Uncanny X-Men #228-238, Annual #12; New Mutants #62-70, Annual #4; material from Marvel Age Annual #4, Marvel Fanfare #40 - X-Men: inferno Omnibus
Collects X-Factor #33-40; X-Terminators #1-4; Uncanny X-Men #239-243; New Mutants #71-73; Power Pack #40, #42-44; Avengers #298-300; Fantastic Four #322-324; Amazing Spider-Man #311-313; Spectacular Spider-Man #146-148; Web of Spider-Man #47-48; Daredevil #262-263, 265; Excalibur #6-7; Mutant Misadventures of Cloak and Dagger #4, material from X-Factor Annual #4.- X-Factor #33-34 are also collected in X-Factor Epic Collection: Angel of Death.
- X-Factor Epic Collection: Judgment War
Collects X-Factor #37-50 and Annual #4, and Uncanny X-Men #242-243.- X-Factor #41-48 were previously only available in Essential X-Factor Vol. 3.
- X-Factor #49-50 are also collected in Acts of Vengeance Crossovers Omnibus
- X-Factor #51-59 are only available in Essential X-Factor vol. 4.
- X-Men Milestones: X-tinction Agenda
Collects Uncanny X-Men #235-238 & #270-272, X-Factor #60-62, New Mutants #95-97.- Also collected in The New Mutants Epic Collection: The End of the Beginning.
- X-Men By Chris Claremont & Jim Lee Omnibus Vol. 2
Collects X-Factor #63-70; Uncanny X-Men #273-280; X-Men #1-9, material from #10-11; Ghost Rider #26-27. - X-Factor #65-70 and material from X-Factor Annual #6 are also collected in X-Men Epic Collection: Mutant Genesis.
- X-factor By Peter David Omnibus Vol. 1
Collects X-Factor #55, 70-92; X-Factor Annual #7-8; Incredible Hulk #390-392; material from X-Factor Annual #5-6; New Mutants Annual #6.- X-Factor #71-83, and Annual #7 are also collected in X-Factor Epic Collection: All-New, All-Different X-Factor.
- X-Factor #71–75 are also collected in X-Factor: Visionaries Peter David Vol. 1.
- X-Factor #76–78 are also collected in X-Factor: Visionaries Peter David Vol. 2.
- X-Factor #79–83, Annual #7 are also collected in X-Factor: Visionaries Peter David Vol. 3.
- X-Factor #84–89, Annual #8 are also collected in X-Factor: Visionaries Peter David Vol. 4.
- X-Factor Epic Collection Volume 8: X-Aminations
Collects X-Factor #84-100; X-Factor Annual #8 - X-Factor Epic Collection: Afterlives
Collects X-Factor (1986) #101-111 and Annual #9, X-Factor/Spider-Man: Shadowgames #1-3, X-Force #38, and Excalibur (1988) #82.- X-Factor/Spider-Man: Shadowgames is also collected in X-Factor/Spider-Man: Shadowgames.
- X-Factor #106, X-Force #38, and Excalibur (1988) #82 are also collected in X-Men Milestones: Phalanx Covenant with Uncanny X-Men #305-306, #312-313, #316-317; Excalibur #78-80; X-Men (vol. 2) #36-37; Wolverine #85; Cable #16.
- X-Factor #107-109 are also collected in X-Men: Legionquest with Uncanny X-Men #318-321, X-Men (vol. 2) #38-41, X-Men Unlimited #4-7, X-Men Annual (1992) #3, Cable #2
- X-Factor #112-124 are not collected yet.
- X-Men / Avengers: Onslaught Omnibus
Collects Wolverine #104-105; Cable #32-36; Uncanny X-Men #333-337; X-Force #55, #57-58; X-Man #15-19; X-Men (vol. 2) #53-57, Annual ’96; X-Men Unlimited #11; Onslaught: X-Men, Marvel Universe, Epilogue; Avengers #401-402; Fantastic Four #415; Incredible Hulk #444-445; X-Factor #125-126; Amazing Spider-Man #415; Green Goblin #12; Spider-Man #72; Iron Man #332; Punisher #11; Thor #502; X-Men: Road to Onslaught #1; material from Excalibur #100, Fantastic Four #416. - X-Factor #127-129 are not collected yet.
- X-Men: Onslaught Aftermath
Collects Uncanny X-Men (1981) #338-340, Annual ’96-97; X-Men (1991) #58-61, Annual ’97; X-Men Unlimited (1993) #12-14, X-Factor (1986) #130. - X-Factor #131-149 are not collected yet.
X-Factor Volume 2 (2002)
The “Volume 2” is just a miniseries about the government’s new Mutant Civil Rights Task Force written by Jeff Jensen with artwork by Arthur Ranson.
- X-Factor Vol. 1: The Mountaintop
Collects X-Factor Vol. 2 #1–4.
X-Factor Volume 3 (2005-2013)
Volume 3 is also known as “X-Factor Investigations”. Coming from Peter David, it’s about a detective agency run by Jamie Madrox (aka Multiple Man) with his best friend and special enforcer, Guido Carosella (Strong Guy), and former teammate Rahne Sinclair (Wolfsbane). Then, when the fallout from the House of M depowers most of the world’s mutants, X-Factor must find answers fast Siryn, M and Rictor, and Layla Miller joined the team.
- X-Factor by Peter David Omnibus Vol. 2
Collects Madrox #1-5; X-Factor (2005) #1-20, 21-24 (A stories), 25-39; X-Factor: The Quick and the Dead One-Shot (2008); X-Factor Special: Layla Miller One-Shot (2008); She-Hulk (2005) #31. - X-Factor by Peter David Omnibus Vol. 3
Collects X-Factor (2005) #40-50, #200-232, and #224.1; and Nation X: X-Factor.
Also collected in…
- X-Factor by Peter David: The Complete Collection Volume 1
Collects Madrox #1-5 and X-Factor vol. 3 #1–12. - X-Factor by Peter David: The Complete Collection Volume 2
Collects X-Factor vol. 3 #13-24, 28-32; X-Factor: The Quick and the Dead One-Shot, X-Factor Special: Layla Miller One-Shot.
Also collected in…
- X-Factor Vol. 0: Madrox – Multiple Choice
Collects Madrox #1-5. - House of M – The Avengers and the X-Men are faced with a common foe that becomes their greatest threat: Wanda Maximoff! The reading order of the event is here.
- X-Factor: The Longest Night
Collects X-Factor vol. 3 #1–6. - X-Factor: Life and Death Matters
Collects X-Factor vol. 3, #7–12. - X-Factor: Many Lives of Madrox
Collects X-Factor vol. 3, #13–17. - X-Factor: Heart of Ice
Collects X-Factor vol. 3, #18–24. - X-Men Milestones: Messiah Complex
Collects X-Men: Messiah Complex One-Shot (2007), Uncanny X-Men #492-494, X-Men (vol. 2) 205-207, New X-Men (2004) 44-46, X-Factor (2005) 25-27. - X-Factor: The Only Game in Town
X-Factor vol. 3, #28–32; X-Factor: The Quick and the Dead.
The “Secret Invasion” event had an impact on X-Factor. You can find the full reading order here.
- Secret Invasion
Collects Secret Invasion #1-8. - X-Factor: Secret Invasion
Collects X-Factor vol. 3 #33–38; She-Hulk vol. 2, #31. - X-Factor: Time and a Half
Collects X-Factor vol. 3 #39–45. - X-Factor: Overtime
Collects X-Factor vol. 3 #46–50; X-Factor: Layla Miller.
In December 2009, the series adopted a cumulative numbering with issue #200.
- X-Factor: The Invisible Woman Has Vanished
Collects X-Factor #200–203. - Second Coming: Revelations
Collects X-Men: Hope, X-Men: Blind Science, X-Men: Hellbound #1-3, and X-Factor #204-206. - X-Factor: Happenings in Vegas
Collects X-Factor #207–212. - X-Factor: Scar Tissue
Collects X-Factor #213–219. - X-Factor: Hard Labor
Collects X-Factor #220–224. - X-Factor: Super Unnatural
Collects X-Factor #224.1, 225–228. - Avengers: The Children’s Crusade
Collects Avengers: The Children’s Crusade #1-9 & Avengers: The Children’s Crusade– Young Avengers #1. X-Factor doesn’t play a big part in this event, but it has an impact on the team. - X-Men: Schism
Collects X-Men: Schism #1-5 & X-Men: Regenesis 1. The Schism event is not important for X-Factor, but the one-shot X-Men: Regenesis affects the series. - X-Factor: They Keep Killing Jamie Madrox
Collects X-Factor #229–232. - X-Factor: Together Again for the First Time
Collects X-Factor #233–236, Wolverine 52 (1992)- Avengers vs. X-Men Hardcover
Collects Avengers vs. X-Men #0–12, AvX: VS #1–6, Avengers vs. X-Men: Infinite #1, 6, 10, Material from Marvel Point One. Havok and Polaris are part of this event. Reading Order here.
- Avengers vs. X-Men Hardcover
- X-Factor: The Road to Redemption
Collects X-Factor #237–240 - X-Factor: Breaking Points
Collects X-Factor #241–245. - X-Factor: Short Stories
Collects X-Factor #246–249. - X-Factor: Hell On Earth War
Collects X-Factor #250–256. - X-Factor: The End of X-Factor
Collects X-Factor #257–262.
All-New X-Factor (2014-2015)
New Series! All-New X-Factor is a new iteration of the X-Factor superhero team written by Peter David, a return to the corporate-sponsored version of the team that was the initial concept when the first version of X-Factor debuted in 1986.
- All-New X-Factor: Not Brand X
Collects All-New X-Factor #1-6. - All-New X-Factor: Change of Decay
Collects All-New X-Factor #7-12. - All-New X-Factor: Axis
Collects All-New X-Factor #13-20.
Marvel Fresh Start
Not really an X-Factor series, but Jamie Madrox’s fan may want to read it to know what happened with him after Inhumans vs X-Men.
- Multiple Man: It All Makes Sense In The End
Collects Multiple Man #1-5.
X-Factor Volume 4 (2020-2021)
Like all the other X-titles, X-Factor made its comeback during the Dawn of X era. In order to know more, take a look at the reading order. Mutants have conquered death! By the grace of the Five, the resurrection protocols of the island nation of Krakoa can bring any of the X-Men’s fallen comrades back to life. But such a huge enterprise comes with even bigger problems and complications! And when a mutant dies, X-Factor is there to investigate how and why – in order to uphold the rules of reincarnation!
- X-Factor by Leah Williams – Volume 1
Collects X-Factor (vol. 4) #1–3, 5. - X of Swords
Collects X-Men #12, X of Swords: Creation #1, X-Factor #4, Wolverine #6, X-Force #13, Marauders #13, Hellions #5, New Mutants #13, Cable #5, Excalibur #13, X-Men #13, X of Swords: Stasis #1, X-Men #14, Marauders #14, Marauders #15, Excalibur #14, Wolverine #7, X-Force #14, Hellions #6, Cable #6, Excalibur #15, X-Men #15, X of Swords: Destruction #1. - X-Factor by Leah Williams – Volume 2
Collects X-Factor (vol. 4) #6–10.