What is a prime number times a prime number?

A Prime number times a prime number is a composite number.

Since prime numbers, except for 2, are odd numbers, a prime number times a prime number is usually an odd number. It will only be an even number if one of the prime numbers is 2.

A prime number times a prime number will be a number with four factors unless both prime numbers are the same, in which case it will be a square number with only three factors.