Greta said that the product of two prime numbers must also be a prime number. Joan disagreed. Who is correct?
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!
Joan
So it can not have a prime+a prime and get a prime?
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
This really helped me. Thank you.
This really helped me.
Try multiplying some of these prime numbers.
http://www.mathsisfun.com/prime_numbers.html
What do you think?