Why is 2 the only even prime number?
1 Answer
Apr 5, 2017
Because all other even numbers have 2 as a factor.
Explanation:
A prime number can have only 1 and itself as factors.
Any even number has 2 as a factor so if the number has itself , 2 and 1 as factors it can not be prime.
2 is an even number that has only itself and 1 as factors so it is the only even number that is a prime.
