What is "factor x"

n. coagulation factor that is converted to an enzyme that converts prothrombin to thrombin in a reaction that depends on calcium ions and other coagulation factors [syn: prothrombinase]

Factor X, also known by the eponym Stuart–Prower factor, is an enzyme of the coagulation cascade. It is a serine endopeptidase (protease group S1, PA clan).

Factor X was the Spanish version of the British television music competition The X Factor, created by Simon Cowell. The show, which aired on Cuatro, followed series 2-3 of the British format, with three categories, mentored by one judge each, whom choose the acts to represent the category in the live shows. The judges were singer and DJ Miqui Puig, headhunter Eva Perales and music radio producer Jorge Flo. Nuria Roca hosted the show. The first series was won by María Villalón. The second series was won by Vocal Tempo.

Factor X, also known as Stuart-Prower factor or as thrombokinase, is an enzyme.

Factor X may also refer to:

• Factor X (Ailyn album), a 2007 album by Ailyn
• Factor X (Chile), the Chilean version of The X Factor
• Factor X (Portuguese TV series), the Portuguese version of The X Factor
• Factor X (Spain), the Spanish version of The X Factor
• El Factor X, the Colombian version of The X Factor
• Factor X, a reference to protoporphyrin IX or haemin when used to identify Haemophilus influenzae in a microbiology laboratory

Factor X Chile is a television show, adapted from the original UK show as part of The X Factor franchise. The auditions were in January 2011. The first season of the Chilean version was premiered on television in March 3, 2011. It will be hosted by Julian Elfenbein, the same host of the other recent successful talent show Talento Chileno, the Chilean versión of the Got Talent franchise. It is the second version of this format made in Latin America, but the first to meet the new requirements of the franchise in the level of production. The judges for the first series of the show are Zeta Bosio, Karen Doggenweiler, and Tito Beltrán, with various guest judges. The first season aired on Thursday and Sunday, starting on March 3, 2011 in TVN.

Factor X is a Chilean television music competition show, to find new singing talent; the winner of which receives a recording contract with a record label. The first season of the show debuted in March 3, 2011, and will be aired on Thursday and Sunday. The auditions were in January 2011 and where more than 10.000 people arrived throughout the process. It will be hosted by Julián Elfenbein, the same host of the other recent successful talent show Talento Chileno, the Chilean versión of the Got Talent franchise. It will be the second version of this format made in Latin America after the Colombian El factor X shows, but the first to meet the new requirements of the franchise in the level of production. The judges for this season are Zeta Bosio, Karen Doggenweiler and Tito Beltrán, with Nydia Caro as guest judge.

Factor X is the Portuguese version of the television music competition The X Factor, originally created by Simon Cowell. The first episode premiered on October 6, 2013 hosted by Bárbara Guimarães, João Manzarra, Carolina Torres and Tiago Silva. The three judges are Paulo Junqueiro, Sónia Tavares and Paulo Ventura.