Prime Number Checker

Check if a number is prime and find prime factors

Check Number

Result

Enter a number to check if it's prime

Prime Factors

Prime factors will appear here

Prime Number Generator

Prime numbers will appear here

About Prime Numbers

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

First 10 primes: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29

Properties: 2 is the only even prime number. All other even numbers are composite.