In mathematics, the factorial of a non-negative integer n {\displaystyle n} , denoted by n ! {\displaystyle n!} , is the product of all positive integers...

In mathematics, the double factorial of a number n, denoted by n‼, is the product of all the positive integers up to n that have the same parity (odd...

In statistics, a full factorial experiment is an experiment whose design consists of two or more factors, each with discrete possible values or "levels"...

mathematics, the falling factorial (sometimes called the descending factorial, falling sequential product, or lower factorial) is defined as the polynomial...

{\displaystyle n} . Factorial may also refer to: Factorial experiment, a statistical experiment over all combinations of values Factorial code, data representation...

fractional factorial designs are experimental designs consisting of a carefully chosen subset (fraction) of the experimental runs of a full factorial design...

gamma from the Greek alphabet) is one commonly used extension of the factorial function to complex numbers. The gamma function is defined for all complex...

A factorial prime is a prime number that is one less or one more than a factorial (all factorials greater than 1 are even). The first 10 factorial primes...

The exponential factorial is a positive integer n raised to the power of n − 1, which in turn is raised to the power of n − 2, and so on in a right-grouping...

the factorial number system, also called factoradic, is a mixed radix numeral system adapted to numbering permutations. It is also called factorial base...