Any Natural number which is greater than one is either a prime number or a composite numbers. Prime number is a natural number that has exactly two factors. In other words its a natural number that can only be divided with one and that number itself.  Some of the Prime Numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23....etc.

Prime numbers Calculator is an mathematical tool which will help us to find whether the given number is a prime number or not.

## How to Find Prime Numbers

Below you could see how to find prime numbers
1. To calculate Prime Numbers, firstly find the factors of the given number.
2. Prime Number will have two factors i.e. one and that number itself. If the given number has only two factors that is one and that number it self, then its a prime number.
Example : Take 13 as the number.

The factors of 13 are, 1, 13.

The number 13 has two factors, 1 and 13 itself, Hence it can be called as the Prime Number.

The following are the prime numbers up to 50:

In the given table, the numbers with white background are prime numbers.