Factor X (disambiguation)

Factor X, or Coagulation factor X, is an enzyme.

Factor X may also refer to:

Factor X (Chilean TV series), a version of The X Factor Factor X (Portuguese TV series), a version of The X Factor Factor X (Spanish TV series), a version of The X Factor El Factor X, the Colombian version of The X Factor Hemin, the "Factor X" required for the growth of Haemophilus influenzae Factor X, a Marvel Comics limited series set in the Age of Apocalypse “Factor X”, the motive of serial killer Dennis Rader

See also X Factor (disambiguation)