Asked by KC

Greta said that the product of two prime numbers must also be a prime number. Joan disagreed. Who is correct?
Answered by Ms. Sue
Try multiplying some of these prime numbers.

http://www.mathsisfun.com/prime_numbers.html

What do you think?
Answered by Anonymous
By definition, the product of two numbers other than 1 cannot be a prime. And, since 1 is not a prime number, the product will have two factors, so it cannot be prime!
Answered by A student
This really helped me.
Answered by A student
This really helped me. Thank you.
Answered by anonymous
So it can not have a prime+a prime and get a prime?
Answered by Mia
Joan
Answered by Lalalala :)
It can be the one is prime so the other can prime to because you can use prime factorization to know what is the true answer to be a prime
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