The third volume, but second ongoing series starring X-Factor! Madrox the Multiple Man starts a detective agency called X-Factor Investigations. The first, best line of defense for the superhero community! Numbering: After issue 50 of this volume, Marvel started counting the X-Factor issues from X-Factor Volume 1 and jumped the numbering to issue 200, collecting the two ongoing volumes into one. The series lasted until issue 262, after which writer Peter David said goodbye to many of the team-members and started an all new title with (mostly) different characters and a different approach. This title started a few months later and was named All-New X-Factor.The series had three specials; X-Factor: The Quick and the Dead, X-Factor: Layla Miller and Nation X: X-Factor.Collected EditionsThe Longest Night (#1-6)Life And Death Matters (#7-12)Many Lives of Madrox (#13-17)Heart Of Ice (#18-24)Messiah Complex (#25-27)X-Men Milestones: Messiah Complex (#25-27)The Only Game in Town (#28-32)Secret Invasion (#33-38)Time And A Half (#39-45)Overtime (#46-50)Invisible Woman Has Vanished (#200-203)Second Coming: Revelations (#204-206)Happenings In Vegas (#207-212)Scar Tissue (#213-219)Hard Labor (#220-224)Super Unnatural (#224.1, #225-228)They Keep Killing Madrox (#229-232)Together Again for the First Time (#233-236)The Road to Redemption (#237-240)Breaking Points (#241-245)Short Stories (#246-249)Hell On Earth War (#250-256)The End of X-Factor (#257-262)Complete CollectionX-Factor By Peter David: The Complete Collection vol. 1 (Madrox #1-5, #1-12)X-Factor By Peter David: The Complete Collection vol. 2 (#13-24, #28-32, X-Factor: The Quick and the Dead, X-Factor Special: Layla Miller)