Why can't even numbers be prime numbers?

Answer 1

First of all, remember that a Prime number is a number which is only divisible by either 1 or the number itself. This statements also means that the Prime number has only two factors, which are 1 and the number itself.

This means any number which has more than two factors are not prime. So, first we should look at the number Two (2). 2 has only two factors: 1 and 2 . All even numbers are divisible by 2. Thus, 2 can exactly divide any even number greater than it, and also become a factor of it.

Then, it is clear that Every even number greater than 2 has more than two factors, which implies that every even number greater than 2 is not prime.

Answer 2

Because with the exception of 2 they all have more than two factors.

Answer 3

A prime number is any number that only has one and itself as factors. By definition even numbers have a factor of two. Therefore even numbers cannot be prime, with he exception of 2.

Answer 4

A prime number is any number that only has one and itself as factors. By definition even numbers have a factor of two. However, there is one number that is prime and even: the number 2.

Answer 5

Because with the exception of 2 they all have more than two factors