factor in

British  

verb

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

---

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]

---

Example Sentences

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

Trump has lauded Bondi for doing a "tremendous job", and Blanche denied reports that his predecessor's handling of the Epstein files had been a factor in her departure.

From BBC • Apr. 11, 2026

Labor shortages may also be a factor in food prices and services.

From The Wall Street Journal • Apr. 10, 2026

Bond markets aren’t nearly as effusive, however, and that could be a crucial factor in establishing the rally’s longevity as the unofficial start of the first-quarter earnings season begins next week.

From Barron's • Apr. 10, 2026

That was surely a factor in his becoming perhaps the most accomplished American physicist not to receive a Nobel Prize, but it does not mean he failed to do pioneering research.

From "Big Science" by Michael Hiltzik