A factorial is a mathematical function that multiplies a given number by all the numbers below it. For example, the factorial of 5 is 5! = 5 x 4 x 3 x 2 x 1 = 120. Factorials are commonly used in probability and statistics. What factorial means? The factorial of a number is the product of all the positive integers less than or equal to the number. For example, the factorial of 5 is 5 * 4 * 3 * 2 * 1 = 120. How do you calculate a factorial? To calculate a factorial, you multiply a number by all of the numbers below it. For example, the factorial of 5 would be 5x4x3x2x1, or 120. What is the factorial of a number? The factorial of a number is the product of all the integers from 1 up to that number. So, the factorial of 4 would be 1 x 2 x 3 x 4 = 24.

#### How do you solve 15 factorial?

To solve 15 factorial, you would first start by writing out the number 15 followed by the symbol for factorial, which is an exclamation point. This would give you the equation 15!

Next, you would begin by multiplying 15 by 14, and then take the product of that and 13, and so on until you reach 1. The final answer would be 15! = 1,307,674,368,000.

### What is a factorial of 30?

Factorials are used frequently in mathematics, especially in combinatorics, and they have a number of interesting properties. The factorial of a positive integer n, denoted by n!, is the product of all positive integers less than or equal to n:

n! = 1 * 2 * 3 * ... * n

For example, the factorial of 5 is 5! = 1 * 2 * 3 * 4 * 5 = 120.

The factorial of a number is always a positive integer, except for 0! = 1.

The factorials of 0 and 1 are 1.

The factorials of negative numbers are not defined.

The factorial of a non-integer is not well-defined, but it can be approximated by the gamma function.