Factor

Factor, a Latin word meaning "who/which acts", may refer to:

Commerce

 * Factor (agent), a person who acts for, notably a mercantile and colonial agent
 * Factor (Scotland), a person or firm managing a Scottish estate
 * Factors of production, such a factor is a resource used in the production of goods and services
 * Factor, a ready-made meal company previously known as Factor75, owned by Hello Fresh

Biology

 * Coagulation factors, substances essential for blood coagulation
 * Environmental factor, any abiotic or biotic factor that affects life
 * Enzyme, proteins that catalyze chemical reactions
 * Factor B, and factor D, peptides involved in the alternate pathway of immune system complement activation
 * Transcription factor, a protein that binds to specific DNA sequences

Computer science and information technology

 * Factor (programming language), a concatenative stack-oriented programming language
 * Factor (Unix), a utility for factoring an integer into its prime factors
 * Factor, a substring, a subsequence of consecutive symbols in a string
 * Authentication factor, a piece of information used to verify a person's identity for security purposes
 * Decomposition (computer science), also known as factoring, the organization of computer code
 * Enumerated type: a data type consisting of a set of named values, called factor in the R programming language

Other uses in science and technology

 * Factor, in the design of experiments, a phenomenon presumed to affect an experiment
 * Human factors, a profession that focuses on how people interact with products, tools, or procedures
 * Sun protection factor, a unit describing reduction in transmitted ultraviolet light

General mathematics

 * Factor (arithmetic), either of two numbers involved in a multiplication
 * Divisor, an integer which evenly divides a number without leaving a remainder
 * Factorization, the decomposition of an object into a product of other objects
 * Integer factorization, the process of breaking down a composite number into smaller non-trivial divisors
 * A coefficient, a multiplicative factor in an expression, usually a number
 * The act of forming a factor group or quotient ring in abstract algebra
 * A von Neumann algebra, with a trivial center
 * Factor (graph theory), a spanning sub graph
 * Any finite contiguous sub-sequence of a word in combinatorics or of a word in group theory.

Statistics

 * An independent categorical variable.
 * In experimental design, the factor is a category of treatments controlled by the experimenter.
 * In factor analysis, the factors are unobserved underlying hidden variables that explain variability in a set of correlated variables.

People

 * Factor Chandelier, Canadian hip hop artist
 * John Factor (1892–1984), British-American Prohibition-era gangster
 * Max Factor Sr. (1872–1938), Polish-American businessman and cosmetician
 * Max Factor Jr. (1904–1996), son of the above, born Francis Factor

Places

 * Factor, Arecibo, Puerto Rico, a barrio

Other uses

 * Factor (chord), a member or component of a chord
 * FACTOR, the Foundation to Assist Canadian Talent on Records
 * The Factor, an April 2017 TV show on Fox News Channel