A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself.
www.primber.com is a website collect prime numbers, and you can check if a number is primber or not.
For composite numbers, we can also factorization it, and give you full list of it's prime factors.
We also provide prime number tools:
You can check any number to see if it's a prime number, and generate a prime number list for free.