A factor, a Latin word meaning 'who/which acts', may refer to:

In commerce:

  • Factor (agent), a person who acts for another, notably a mercantile and/or colonial agent
  • Factor (Scotland), a person or firm managing a Scottish estate
  • Factors of production, a resource used in the production of goods and services
  • Factoring (finance), an entity providing commercial finance services
  • Max Factor, a cosmetics company founded by Max Factor, Sr.

In biology:

  • Factor B and factor D, peptides involved in the alternate pathway of immune system complement activation
  • Coagulation factors, substances essential for blood coagulation
  • Environmental factor, any abiotic or biotic factor that affects life
  • An enzyme, proteins that catalyze chemical reactions

In mathematics:

  • 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
  • A von Neumann algebra with a trivial center
  • Factor (graph theory), a spanning subgraph
  • Any finite contiguous subsequence of a word

In statistics:

  • A categorical variable
  • Factor analysis is the study of how factors or certain variables affect other variables

In physics:

  • Sun protection factor, a unit describing reduction in transmitted ultraviolet light

In technology:

  • Human factors, a profession that focuses on how people interact with products, tools, or procedures.

In computer science and information technology:

  • Authentication factor, a piece of information used to verify a person's identity for security purposes
  • Factor (programming language), a concatenative stack-oriented programming language
  • A substring, a subsequence of consecutive symbols in a string

In scientific method:

  • A phenomenon presumed to affect an experiment; see design of experiments

In television:

  • The O'Reilly Factor, an American talk show hosted by Bill O'Reilly on Fox News
  • The Krypton Factor, a British game show hosted by Gordon Burns, formerly on ITV
    • The Krypton Factor (US game show) American version


  • Max Factor, Sr., a Polish-American businessman and cosmetician
  • Max Factor, Jr., son of the above, born Francis Factor
  • John Factor, a Prohibition-era gangster


  • FACTOR, the Foundation to Assist Canadian Talent on Records

Other articles related to "factor":

List Of Polynomial Topics - Terminology
... Degree – Factor – An expression being multiplied ... Linear factor – A factor of degree one ...
Transition Radiation - History
... was logarithmically proportional to the Lorentz factor of the particle ... measurement of intensity of the TR was providing new ways of defining Lorentz factor of the relativistic particles ... boundary between media and vacuum were directly proportional to the Lorenz factor of the particle ...
Improbability Factor
... In computer programming the improbability factor is a situation where a problem exists in a system ... The improbability factor is an example of an anti-pattern ...
Attribute Grammar - Example
... Expr + Term Expr → Term Term → Term * Factor Term → Factor Factor → "(" Expr ")" Factor → integer The following attribute grammar can be used to calculate the result of an ... Expr1 → Expr2 + Term Expr → Term Term1 → Term2 * Factor Term → Factor Factor → "(" Expr ")" Factor → integer ...
Environmental Factor
... Environmental factor or ecological factor or ecofactor is any factor, abiotic or biotic, that influences living organisms ...

Famous quotes containing the word factor:

    Children of the middle years do not do their learning unaffected by attendant feelings of interest, boredom, success, failure, chagrin, joy, humiliation, pleasure, distress and delight. They are whole children responding in a total way, and what they feel is a constant factor that can be constructive or destructive in any learning situation.
    Dorothy H. Cohen (20th century)

    It is change, continuing change, inevitable change, that is the dominant factor in society today. No sensible decision can be made any longer without taking into account not only the world as it is, but the world as it will be.... This, in turn, means that our statesmen, our businessmen, our everyman must take on a science fictional way of thinking.
    Isaac Asimov (1920–1992)

    In his very rejection of art Walt Whitman is an artist. He tried to produce a certain effect by certain means and he succeeded.... He stands apart, and the chief value of his work is in its prophecy, not in its performance. He has begun a prelude to larger themes. He is the herald to a new era. As a man he is the precursor of a fresh type. He is a factor in the heroic and spiritual evolution of the human being. If Poetry has passed him by, Philosophy will take note of him.
    Oscar Wilde (1854–1900)