# What is 37 factorial ?

Steps to calculate factorial of 37

## How to calculate the factorial of 37

To find 37 factorial, or 37!, simply use the formula that multiplies the number 37 by all positive whole numbers less than it.

Let's look at how to calculate the Factorial of Thirty-seven :

37! is exactly : 13763753091226345046315979581580902400000000

Factorial of 37 can be calculated as:
37! = 37 x 36 x 35 x 34 x ... x 3 x 2 x 1

The number of trailing zeros in 37! is 8

The number of digits in 37 factorial is 44.

## What Is Factorial?

A factorial is showed by an integer and an exclamation mark. In math concepts, factorial is a multiplication process of natural numbers .

It multiplies the number by every noreal number that is less than it .

Symbolically, it is listed as "!".

The function is used, among other things, to find the "n" way items can be determined .

## Factorial Formula

To find the factorial of any given number, replace the value for n in the given equation :

n! = n × (n-1) × (n-2) × (n-3) × ….× 3 × 2 × 1

The expansion of the formula provides numbers to be multiplied to each other to receive the factorial of the number.

We can also determine a factorial from the previous one. The factorial of any number is that number times the factorial of (that number minus 1).

So the rule is : n! = n × (n−1)!

Example :
37! Factorial = 37 x 36 x 35 x 34 x ... x 3 x 2 x 1 = 37 × 36! = 13763753091226345046315979581580902400000000

## What are Factorials Used For?

The best use of factorial is in Combinations and Permutations.

Example : Determine how to arrange letters without repeating?

There one way for 1 letter "a":
2 ways for two letters "ab": ab, ba.
There are 6 ways for 3 letters "abc": abc acb cab bac bca.
There are 24 ways for 1234 of the letters "abcd"

## Frequently Asked Questions on Factorial

### Can we have factorials for negative numbers ?

Negative number factorials are undefined

### What Is 0!

Zero factorial or Factorial of 0 is simple, and its value is equal to 1. So, 0! = 1.