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

Cost of living remains the most important factor in determining residents’ quality of life, a measure that fell from 2025 rankings, the survey found.

From Los Angeles Times • Apr. 16, 2026

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

SEW chairman Train called climate change an "element factor" in outages.

From BBC • Apr. 14, 2026

This approach allows you to factor in travel and experiences while still being fiscally responsible.

From MarketWatch • Apr. 11, 2026

There was another factor in Baird’s mind: Reggie “seemed like a decent kid.”

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel