Question 9549
Remember that prime numbers are numbers that can only be divided by 1 and itself. For example, 1, 3, and 5. The only way you can get 1 is to multiply 1 x 1. The same goes for 3 and 5. 1 x 3 and 1 x 5. 


Of course, most people immediately think of odd numbers, but that only holds true until you get to 9. You can get 9 by multiplying 3 x 3, therefore denying it the title of "prime number." 


Even numbers can never be prime because they are all always divisible by 2, the only even number that is prime is 2 because the only way to get 2 is to multiply 1 x 2.