Editing X-Factor (comics) (section)

===Volume 3 (2005–2013)===
[[File:X-FactorVol3-224.1cover.jpg|thumb|X-Factor Investigations, from ''X-Factor'' (vol 3) #224.1. Art by [[David Yardin]].]]
{{Main|X-Factor Investigations}}
X-Factor Investigations is a detective agency run by [[Jamie Madrox]], also known as Multiple Man. The name is taken from the government-sponsored group the three founders previously served on. The initial staff consists of Madrox's best friend and special enforcer, Guido Carosella (Strong Guy), and former teammate Rahne Sinclair (Wolfsbane). Following the events of the "[[House of M]]" storyline, Madrox's new-found wealth from winning a ''[[Who Wants to Be a Millionaire?]]''-style [[game show]] allows him to recruit several of his former colleagues from the [[Paris]] branch of the now defunct [[X-Corporation]]. New members include:

* [[M (Marvel Comics)|M]] (Monet St. Croix) – A wealthy ambassador's daughter with an array of superhuman powers.
* [[Rictor]] (Julio Richter) – A Mexican mutant who can produce powerful seismic waves.
* [[Siryn]] (Theresa Cassidy) – Banshee's daughter with similar sonic-based powers.
* [[Layla Miller]] – A young mutant who inserts herself into the group to keep them from discovering the truth behind the "[[Decimation (comics)|Decimation]]" storyline.

The new series opens with a suicide attempt by Rictor, who has lost his powers. The series deals with the group's attempt to unravel the truth behind the "Decimation" and its aftermath, fighting with Singularity Investigations, and dealing with Madrox's powers and their consequences.

During the "[[Messiah Complex (comics)|Messiah Complex]]" storyline, Jamie and Layla travel to a dystopian future in which mutants are persecuted and imprisoned. Jamie escapes and returns to the early 21st century, but Layla is still trapped. Rahne fears (because of a glimpse she has had of the future) that she, while in her wolf shape, will murder Jamie and Layla. To prevent this, she quits the team and joins [[X-Force]]. Rictor also quits. Jamie travels to the future with the help of an aged Layla Miller and helps a rebellion led by a cyborg Scott Summers and his daughter [[Ruby Summers|Ruby]], while the rest of the team is in the present. After battling Arcade, who captured Rictor (who then rejoins), the team meets one of Jamie's duplicates, who calls himself Cortex and is joined by new members:

* [[Longshot (Marvel Comics)|Longshot]] – A genetically created humanoid from Mojoverse with favorable probability outcomes.
* [[Darwin (character)|Darwin]] (Armando Muñoz) – One of Moira's early recruit with reactive evolution powers.
* [[Shatterstar]] (Gaveedra Seven) – founding X-Force member with that can open dimensional portals and channel vibratory shockwave through his swords.