Question

If a and b are relatively prime, what is their LCM?

Answer 1

If two numbers are relatively prime then their greatest common factor will be 1.

∴ HCF (a, b) = 1

Using the formula, Product of two numbers = HCF × LCM

We conclude that,

a × b = 1 × LCM

∴ LCM = ab

Thus, LCM (a, b) is ab.