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That's a false statement. Both 16 and 64 have one prime factor. 16 can't be the LCM of two prime numbers and 64 can't be the product. If you leave out the word prime, you can use 16 and 4.

Q: What is the LCM of two prime numbers is 16 and product is 64?

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No. You can only find the LCM of at least two numbers, prime or otherwise. The LCM of any two prime numbers is their product.

The prime factorization of the LCM will contain all the prime factors of the two original numbers. When the original numbers don't have any prime factors in common, (the GCF is 1) the LCM will be their product. When the two original numbers have prime factors in common (the GCF is 2 or more) the duplicates will be discarded and the LCM will be less than their product.

The LCM of two numbers is sometimes the product of the two numbers.

The LCM of 6 and 13 is 78. Because 13 is prime, the LCM of the two numbers is their product.

When the two numbers are coprime. Coprime numbers need not be prime numbers - they must not have any factor in common (other than 1). So, for eaxmple, neither 8 nor 9 are prime numbers but they are coprime and so, LCM(8 , 9) = 72

Related questions

Product of the two prime numbers is the LCM. For example 3, 7 have 21 as LCM

Yes,LCM of two numbers is their product.

When two numbers are relatively prime, the LCM will be their product.

The Least Common Multiple (LCM) of two prime numbers is the product of the two prime numbers. This is because prime numbers only have themselves and 1 as factors, so their LCM is simply their product.

Their product.

No. You can only find the LCM of at least two numbers, prime or otherwise. The LCM of any two prime numbers is their product.

When the numbers are co-prime.

The LCM of two numbers is one of the numbers when one of the numbers is a multiple of the other. The LCM of two numbers is the product of the numbers when they are relatively prime. In all other cases (like consecutive even numbers that aren't 2 and 4) the LCM is as you describe.

The LCM of two numbers is their product if and only if the two numbers are co prime, that is their HCF is 1. Otherwise their LCM in not their product, in fact, it is their product divided by their HCF.

Their product.

If the GCF of a given pair of numbers is 1, the LCM will be equal to their product. If the GCF is greater than 1, the LCM will be less than their product. Or, stated another way, if the two numbers have no common prime factors, their LCM will be their product.

Any two that are relatively prime.