A factor, a Latin word meaning 'who/which acts' can be:

• a person acting for another as a mercantile and/or colonial agent, or, in Scotland, a Factor is a person or firm managing property on behalf of the owner;
• something which is believed to have an effect on a response variable in an experiment (see design of experiments).
• in computer science a factor is a mean of authentication a resource. See two-factor authentication.
• in mathematics,
  • a multiplicative factor is a coefficient; compare multiplication factor
  • a number that is a divisor of another number; thus, factorization is to express a number as the product of two numbers.
  • a von Neumann algebra with a trivial center;
• an enzyme in biochemistry;
• factors of production in economics
• an acronym for Functionality, Application domain, Conditions, Technology, Objects, and Responsibility in the OOA&D method;
• a leader of a cell in one of the philosophical factions in the Planescape setting for Dungeons & Dragons;
• the Factor programming language, created by Slava Pestov;

Faktor | Faktoro | Factor | Faktor