Prime Number Calculator
What is Prime Number Calculator ?
A prime number calculator is a free online tool used to identify whether a number is prime or composite. If the number is not a prime number, the calculator can show all prime factors by checking the "Show prime factors" box.
What is a Prime Number ?
A prime number is any integer or integer larger than 1 that can only be divided by 1 and itself. In other words, there are only two factors in a prime number, 1 and itself.
Example 1. Is 97 a prime number ?
Yes, 97 has only two factors, 1 and 97, thus this is a prime number.