is Prime Number

Prime Number Checker and Calculator

IsPrimeNumber is an easy to use and handy online prime number checker and calculator.
We just launched the prime number checker page with the Constantine Adraktas Matrix Formulae.

Share On

What is a Prime Number ?

A prime number is a number that has no positive divisors other than 1 and itself.


To check if a number is prime or not, simply type the number in box above and click calculate button. Prime number calculation page will displayed immediately after you submit your number. If the number is not a prime number, the divisors of number will be listed.

I'd like to thank Constantine Adraktas for his support,
please visit his page for more information about prime numbers.

Please check out our prime numbers calculation page prepared by his formulas.

Prime Numbers List

Helpful Resources