Prime or Composite Number Calculator

Our Prime or Composite Number Calculator is a simple yet powerful tool that helps to determine whether a given number is a prime or composite.

What is a prime number?

A number that has exactly two factors 1 and the number itself is called a prime number. For example: 2, 3, 5, 7, 11, 13, 17 etc.

What is a composite number?

A number that has more than two factors is called a composite number. For example: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20 etc. 

This calculator quickly checks to the number of factors of a given number and provides instant results whether it is a prime number or a composite number. It is useful for the students, teachers, or anyone working with number theory or mathematics.

Key Features of Our Prime or Composite Number Calculator:

1. Instant Results – Quickly determines whether a number is a prime or composite.
2. User-Friendly Interface – Simple and easy-to-use for all age groups.
3. Supports Large Numbers – Efficiently checks upto 8-digit numbers.
4. Fast & Accurate – Gives quick and accurate results.
5. Educational Tool – Ideal for students, teachers or anyone.