Definition of factorial
:of, relating to, or being a factor or a factorial
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First Known Use of factorial
1837
Definition of factorial
1
:the product of all the positive integers from 1 to n
—symbol n!
2
:the quantity 0! arbitrarily defined as equal to 1
First Known Use of factorial
1869
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See words that rhyme with factorial Britannica.com: Encyclopedia article about factorial
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