factor in

British  

verb

1. (tr, adverb) to take account of (something) when making a calculation

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factor in Idioms  

1. Figure in, include as a basic element. For example, In preparing the schedule we factored in vacation and sick days. This term comes from mathematics. [Mid-1900s]

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Example Sentences

A major factor in recent years was demand from Indonesia, where the fast-growing battery industry is a big consumer of sulfuric acid, according to Sarah Marlow, head of fertilizer pricing at Argus.

From The Wall Street Journal • Apr. 16, 2026

Rising rent, say the co-executive directors, was a key driving factor in the decision to approach the building’s ownership to purchase the space.

From Los Angeles Times • Apr. 13, 2026

Ndou reflected that while "race has always been a factor" in the DA, he said the party had sought to address it with its new leadership that "resembles a party that is multiracial".

From BBC • Apr. 13, 2026

As a travel enthusiast who regularly flies across the globe, Tracy Lamourie is used to contending with airline pricing strategies, particularly for economy fares that often appear affordable — until you factor in the extras.

From MarketWatch • Apr. 10, 2026

That contrast between the immediate virtues of wheat and barley and the difficulties posed by teosinte may have been a significant factor in the differing developments of New World and Eurasian human societies.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond