What is "x-factor"

n. (alternative spelling of X factor English)

X-Factor is an American comic book series published by Marvel Comics. It is a spin-off from the popular X-Men franchise, featuring characters from X-Men stories. The series has been relaunched several times with different team rosters, most recently in X-Factor v. 3 as X-Factor Investigations.

X-Factor launched in 1986, featuring an eponymous team composed of the five original X-Men. In 1991, the founding members were incorporated back into the regular X-Men series, and X-Factor relaunched as a U.S. government-sponsored team incorporating many secondary characters from the X-Men mythos. The series was canceled in 1998.

In 2002 a four-part X-Factor mini-series detailed an investigation by the Mutant Civil Rights Task Force into an alleged conspiracy by hate-groups to commit murder against mutants. The series was written by Jeff Jensen with artwork by Arthur Ranson.

In 2005 a new X-Factor series was launched, following the mutant detective agency X-Factor Investigations. Written by Peter David, the series drew acclaim from Ain't It Cool News, as well as controversy for establishing a homosexual romantic relationship between Rictor and Shatterstar, a move criticized by Shatterstar's co-creator, Rob Liefeld. The series also won a 2011 GLAAD Media Award for Outstanding Comic Book. The series ended in 2013.

In 2014 a new series written by David, All-New X-Factor was launched featuring a new corporate-sponsored X-Factor team.

X-Factor was a villainous professional wrestling stable in the World Wrestling Federation (WWF) led by X-Pac that featured Justin Credible and Albert.

The faction met with some success, with X-Pac winning the WWF Light Heavyweight Championship twice, the WCW Cruiserweight Championship once and Albert winning the WWF Intercontinental Championship once.

X-Factor is the Ukrainian version of The X Factor, a show originating from the United Kingdom. It is a television music talent show for aspiring pop singers drawn from public auditions. Auditions were held in major cities of Ukraine: Dnipropetrovsk, Lviv, Donetsk, Kharkiv, Kiev, Poltava, Luhansk, Zaporizhia, Simferopol, Mykolaiv, Chernivtsi, Uzhhorod, Lutsk, and Rivne.

The show started on Channel STB on 4 September 2010. The winner of the first series was Olexiy Kuznetsov.

The second season started on October 22, 2011. The winner of the second series was Viktor Romanchenko.

X-Factor is the Armenian version of The X Factor, a show originating in the United Kingdom. It is a televised music talent show contested by aspiring pop singers drawn from public auditions in the Republic of Armenia and the Armenian diaspora. The show in its inaugural year was broadcast on the Armenian Shant TV station, the same station that broadcasts the Armenian Idol series Hay Superstar.

The X-factor in astrophysics, often labeled X, is an empirically determined proportionality constant which converts carbon monoxide (CO) emission line brightness to molecular hydrogen (H) mass.