All prime numbers are odd. Find a counterexample.?

Question

All prime numbers are odd. Find a counterexample.?

Answer 1

2 is the ONLY even prime number!!!

remember this, it could be usefull in solving future algebra problems!

Answer 2

2 is a prime number and it's even.  Two can only be divided evenly by one and itself, and is therefore prime.  But other than that the original statement is correct.  All other prime numbers are odd because if they were even you could divide them by 2, thereby not making it prime!  hope this helps, best answer please!

Answer 3

Two and negative two are the only even prime numbers. That is because every other even number can be evenly divided by two.

Answer 4

2 and ONLY 2 ...

To see this

assume there exists a prime p > 2 where p is even

therefore p = 2n for some integer n...

then p is divisible by 2 and cannot be prime

Answer 5

2 is a prime number.  And it is even, so it's a counterexample.

Answer 6

2  

Answer 7

2.