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
One way to check: The product of the original two numbers is equal to the product of their GCF and LCM. If you divide that product by their GCF, you will get the LCM.
The product of the GCF and LCM of two numbers is equal to the product of the two numbers. The other number is 126.
The LCM of two numbers is sometimes the product of the two numbers.
If the two numbers have no common factors other than 1, the LCM will be their product. If there are other common factors, the LCM will be less.
Not always. The product of two numbers will always be a common multiple, but it will not always be least. The product of 4 and 9 is 36. The LCM of 4 and 9 is 36. The product of 4 and 8 is 32. The LCM of 4 and 8 is 16.
The product of the GCF and LCM is equal to the product of the original two numbers.
The product of the GCF and LCM of a pair of numbers is equal to the product of the numbers.
Since the product of two numbers is equal to the product of their GCF and LCM, the GCF of two numbers is equal to their product divided by their LCM and their LCM is equal to their product divided by their GCF.
The product of the GCF and LCM of a pair of numbers is equal to the product of the numbers.
The GCF of two numbers multiplied by their LCM will equal the product of the original numbers. If you know the GCF, divide it into the product of the two. The result will be the LCM. If the GCF of two numbers is 1, the LCM is their product.
One way to check: The product of the original two numbers is equal to the product of their GCF and LCM. If you divide that product by their GCF, you will get the LCM.
The product of the GCF and the LCM of two numbers is equal to the product of the original two numbers. Multiply the GCF and the LCM. The original two numbers will be another factor pair of that total. Find the factor pair that has that GCF and LCM.
The LCM of two numbers multiplied by their GCF will equal the product of the original numbers. If you know the LCM, divide it into the product. The result will be the GCF.
When the two numbers are relatively prime.
The product of the GCF and LCM of two numbers will equal the product of the two numbers.
If the two numbers have no common prime factors, the LCM will be the product of the numbers.
The general rule is that the product of the LCM and the GCF is equal to the product of the original two numbers. That would make the answer 20. Lets overlook the fact that two numbers with a GCF of 15 and an LCM of 20 don't exist.