Factorial of a Number

In mathematics, factorial is an important function, which is used to determine how many ways things or the ordered set of numbers can be organized. The well-known interpolation function of the factorial function was discovered by Daniel Bernoulli. The factorial concept is used in many mathematical concepts such as probability, permutations and combinations, series and series, etc. Basically, a factorial is a function that multiplies a number by any number less than 1.