Prime+or+Composite

= 17 is prime because it only has 2 factors 1 and itself. Some more examples of prime numbers are 2,3,5,7,11,13,17,19 and lots more. In fact i think that mostly all prime numbers are odd ,on the list of prime numbers i gave only 2 isn't odd. This is how i found if either 17 is prime or composite. =