1

factorial

adjective fac·to·ri·al \ fak-ˈtȯr-ē-əl \

Definition of factorial

: of, relating to, or being a factor or a factorial

Origin and Etymology of factorial

1factor + -ial (in mathematical sense after French factoriel)


2

factorial

noun

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

Origin and Etymology of factorial

borrowed from French factorielle, noun derivative from feminine of factoriel 1factorial


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