## Primes

### Check if the given number is prime.

Enter the Number

### Definition: Prime Number

A natural number (positive integer) **p** is called a **prime number** (or a **prime**) if it is greater than 1 and has exactly two positive divisors, 1 and the number itself.

### Notes

- Biggest integer can be checked, is 9007199254740991.
- If the number is not prime, its prime factorization is shown elegantly with MathJax.