SOLUTION: Which number is a counterexample for the statement: If a is a prime number, then a is odd. A)5 B) 4 C) 3 D) 2 E) 12

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Question 281880: Which number is a counterexample for the statement: If a is a prime number, then a is odd.
A)5 B) 4 C) 3 D) 2 E) 12
Answer by nabla(475) About Me  (Show Source):
You can put this solution on YOUR website!
2 is a prime and it is not odd!
(D) is the answer!

In other words a counterexample is an exception to the statement.
5 fails as it is odd and a prime.
4 fails as it is not a prime.
3 fails as it is odd and a prime.
2 succeeds as above.
12 fails as it is not a prime.