Prime Number Calculator is a free online tool that displays whether the given number is a prime number or not. CoolGyan’S online prime number calculator tools make the calculation faster and it displays the result in a fraction of seconds.

## How to Use the Prime Number Calculator?

The procedure to use the prime number calculator is as follows:

**Step 1:** Enter the number in the input field

**Step 2:** Now click the button “Solve” to get the result

**Step 3:** Finally, the tool will display the given number is a prime number or not (i.e. yes or no) in the output field

### What is Meant by the Prime Number?

In mathematics, the numbers are used to express the quantitative measure. The numbers can be classified into different types, namely real numbers, whole numbers, natural numbers, complex numbers, and so on. The prime numbers are considered as the whole numbers or the positive integers which have exactly two factors, i.e. 1 and the number itself. If the numbers have more factors, then the number is not a prime number. For example, 5 is a prime number. Because 5 is divided by the number 1 and 5 only.