C Program Examples       

A prime number (or a prime) is a natural number that has exactly two distinct natural number divisors 1 and itself.
3, 5, 7, 9, 13 are prime nubmers
forexample:
number 3 has only divisors of 1 and 3
5 is also dividable with only with 2 numbers 1 and 5
So lets get started …