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The product of two prime numbers can never be another prime number, the numbers that you multiplied are factors of the product. (example, 9 times 5 is 45, 9 and 5 go into 45)

Q: Is the product of two prime numbers not a prime number?

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The product of two prime numbers is always a composite number, and it never is a prime number.

No.

No - because its factors include each of the two prime numbers.

The product of two numbers could be either a composite number or a prime number. If one of those numbers is 1 and the other is a prime number, the result is that prime number. If neither number is 1, the product of the two numbers will be a composite number. If one of those numbers is 1 and the other is not a prime number, the product will not be a prime number. So, in most cases, it will be a composite number.

The product of two prime numbers will be composite.

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The product of any two numbers, neither of which is 1, is never a prime number.

The product of two prime numbers is always a composite number, and it never is a prime number.

A composite number is the product of two or more prime numbers.

No.

No - because its factors include each of the two prime numbers.

When one of the numbers is prime and the other is 1.

The product of two numbers could be either a composite number or a prime number. If one of those numbers is 1 and the other is a prime number, the result is that prime number. If neither number is 1, the product of the two numbers will be a composite number. If one of those numbers is 1 and the other is not a prime number, the product will not be a prime number. So, in most cases, it will be a composite number.

None of them can.

A semiprime or a prime square.

The product of two prime numbers will be composite.

Every composite number ... that is, one that is not a prime ... can be written as the product of two or more prime numbers. The primes themselves are the exceptions. A prime number is the product of only ' 1 ' and itself, and ' 1 ' is not considered a prime number.

No. 15 is the product of two prime numbers: 3 and 5