What does factorial mean?
A product of an integer and all the positive integers below it, e.g. 5 factorial is 5 × 4 × 3 × 2 × 1 = 120. In mathematics, the factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n.
Example
"The calculation of 10 factorial is a complex process that requires a lot of time and effort."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.