factor definition, meaning - what is factor in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

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factor

noun [C] uk   /ˈfæk.tər/  us   /-tɚ/

factor noun [C] (FACT)

B2 a fact or situation that influences the result of something: People's voting habits are influenced by political, social and economic factors. Heavy snow was a contributing factor in the accident. Price will be a major/crucial factor in the success of this new product. The economy is regarded as the decisive/key factor in the outcome of the election.informal The movie's success is largely due to its feel-good factor (= its ability to make people feel happy).
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factor noun [C] (NUMBER)

specialized mathematics in mathematics, any whole number that is produced when you divide a larger number by another whole number: Two, three, four and six are all factors of twelve. a particular level on some systems of measurement: a wind chill factor of -20UK a factor 20 suntan creamby a factor of If an amount becomes larger or smaller by a factor of a particular number, it becomes that number of times larger or smaller: Cases of leukaemia in the area near the nuclear reactor have risen by a factor of four.
(Definition of factor from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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