Factorial of a number: The factorial of a number is

The factorial of a number is the product of all positive integers from that number down to 1. It plays a key role in many mathematical concepts, such as permutations, combinations, probability, and more. Learn what a factorial is, how to calculate it with examples, and how to write a factorial function in JavaScript. A factorial is the multiplication of all numbers between 1 and a number, and it is used to count the number of possible arrangements. The factorial of a number is the product of all the integers from 1 to that number. For example, the factorial of 6 is 1"2"3"4"5"6 = 720. Factorial is not defined for negative numbers, and the factorial of zero is one, 0! = 1. Factorial of a Number using Loop # Python program to find the factorial of a number provided by the user. Learn what factorial means, how to calculate it, and why it is useful in math. Find out the formula, the rule, the table, and the interesting facts about factorial.