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

Commerce

Factor (agent) A factor is a type of trader who receives and sells goods on commission, called factorage. A factor is a mercantile fiduciary transacting business in his own name and not disclosing his principal. A factor differs from a commission merchant i ...

, 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

Science and technology

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 Complement factor B is a protein that in humans is encoded by the ''CFB'' gene. Function This gene encodes complement factor B, a component of the alternative pathway of complement activation. Factor B circulates in the blood as a single chai ...

, 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) Factor is a stack-oriented programming language created by Slava Pestov. Factor is dynamically typed and has automatic memory management, as well as powerful metaprogramming features. The language has a single implementation featuring a self-hos ...

, a concatenative stack-oriented programming language *

Factor (Unix) On Unix, Plan 9, and Unix-like computer systems, factor is a utility for factoring an integer into its prime factors. History ''factor'' first appeared on 5th edition Research Unix in 1974, as a "user maintained" utility (section 6 of the manu ...

, 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 Sunscreen, also known as sunblock or sun cream, is a photoprotective topical product for the skin that mainly absorbs, or to a much lesser extent reflects, some of the sun's ultraviolet (UV) radiation and thus helps protect against sunburn and ...

, a unit describing reduction in transmitted ultraviolet light

Mathematics

General mathematics

* A term in

multiplication Multiplication (often denoted by the cross symbol , by the mid-line dot operator , by juxtaposition, or, on computers, by an asterisk ) is one of the four elementary mathematical operations of arithmetic, with the other ones being additi ...

for a whole number by which a larger whole number can be divided * 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 In number theory, integer factorization is the decomposition of a composite number into a product of smaller integers. If these factors are further restricted to prime numbers, the process is called prime factorization. When the numbers are suf ...

, the process of breaking down a composite number into smaller non-trivial divisors * A

coefficient In mathematics, a coefficient is a multiplicative factor in some term of a polynomial, a series, or an expression; it is usually a number, but may be any expression (including variables such as , and ). When the coefficients are themselves var ...

, a multiplicative factor in an expression, usually a number * The act of forming a

factor group 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, suc ...

or quotient ring in abstract algebra * A von Neumann algebra, with a trivial center *

Factor (graph theory) In graph theory, a factor of a graph ''G'' is a spanning subgraph, i.e., a subgraph that has the same vertex set as ''G''. A ''k''-factor of a graph is a spanning ''k''- regular subgraph, and a ''k''-factorization partitions the edges of the gr ...

, a spanning sub graph * Any finite contiguous sub sequence of a word in group theory

Statistics

* An independent

categorical variable In statistics, a categorical variable (also called qualitative variable) is a variable that can take on one of a limited, and usually fixed, number of possible values, assigning each individual or other unit of observation to a particular group or ...

. ** 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. The factor by which a vector A Is multipled could be a scalar having its own physical dimension

People

* Factor (producer), Canadian hip hop artist *

John Factor John Factor (October 8, 1892 – January 22, 1984), born Iakov Faktorowicz and widely known as Jake "The Barber" Factor, was a Prohibition-era gangster and con artist affiliated with the Chicago Outfit. Biography Factor was born Iakov Faktorowic ...

(1892–1984), British-American Prohibition-era gangster *

Max Factor Sr. Maksymilian Faktorowicz (September 15, 1877 – August 30, 1938), also known as Max Factor Sr., was a Polish-American businessman, beautician, entrepreneur and inventor. As a founder of the cosmetics giant Max Factor & Company, he largely ...

(1872–1938), Polish-American businessman and cosmetician **

Max Factor Jr. Francis Factor (August 18, 1904 – June 7, 1996), also known as Max Factor Jr., was an American businessman who was president of the Max Factor, Max Factor Cosmetics empire. Early life He was born Francis Factor in St. Louis, Missouri, the son o ...

(1904–1996), son of the above, born Francis Factor

Places

Factor, Arecibo, Puerto Rico Factor is a Barrios of Puerto Rico, barrio in the municipality of Arecibo, Puerto Rico. Its population in 2010 was 8,001. History Puerto Rico was ceded by Spain in the aftermath of the Spanish–American War under the terms of the Treaty of Paris ...

, a barrio

Other uses

Factor (chord) In music, a factor or chord factor is a member or component of a chord (music), chord. These are named root (chord), root, third (chord), third, fifth (chord), fifth, sixth chord, sixth, seventh (chord), seventh, ninth (compound interval, compo ...

, a member or component of a chord * FACTOR, the Foundation to Assist Canadian Talent on Records