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Q: What are the only 2 prime numbers whose product is 21?

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There are no two numbers whose product is 23 and whose sum is 10. 23 is a prime number, and the only numbers whose product is 23 are 23 and 1. A prime number can only be divided by itself and 1.

There are not two prime numbers whose product is 64. The prime factorization of 64 is 2 x 2 x 2 x 2 x 2 x 2, which is 2 to the 6th power. These are the only prime numbers that can be multiplied together to result in 64. There are six of them, not two. The only pair of numbers whose product is 64 that includes one prime number is 2 x 32, but only one number is prime.

There are only two prime numbers that are consecutive numbers, 2 and 3. Their product is 2 x 3 = 6. The first prime numbers are 2, 3, 5, and 7 and the only two consecutive prime numbers whose product is a single digit are 2 and 3. (The next two consecutive prime numbers, 3 and 5, have a two-digit product.)

No, because a prime number that has only two factors, 1(which is niether prime nor composite) and itself(prime).

The prime factorization of 15 is 3 x 5 because three and five are the only prime numbers whose product is 15.

The LCM of a set of prime numbers is their product.

Prime numbers only have one prime factor. The factors of 11 are 1 and 11 but only 11 is considered prime. One is the other factor and it is neither prime nor composite. The only prime number with a prime factor that totals 11 is 11.

Written as the product of only prime numbers, 60 = 2 x 2 x 3 x 5.

Numbers whose only common factor is 1.

Since prime numbers are defined as positive integers, any product of prime numbers will be positive.

Only if the numbers are co-prime.

There aren't two prime numbers whose LCM is 90.There aren't two prime numbers whose total is 23.Other than that...The two numbers you are looking for are 5 and 18, but only one of them is prime.

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