What is the product of the GCF and LCM of 4 and 21?

GCF is the abbreviation for Greatest Common Factor and LCM is the abbreviation for Least Common Multiple.

"The product of the GCF and LCM of 4 and 21" means that you want to multiply the GCF of 4 and 21 by the LCM of 4 and 21. In mathematical terms, you want to solve this:

GCF(4,21) x LCM(4,21)

Therefore, to get the answer, we first calculate the GCF and LCM of 4 and 21. The GCF of 4 and 21 and LCM of 4 and 21 are as follows:

GCF(4,21) = 1
LCM(4,21) = 84

Then we multiply the GCF and LCM together to get the answer to "What is the product of the GCF and LCM of 4 and 21?" Like this:

1 x 84 = 84

Product of GCF and LCM Calculator
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