Question

James thinks of two numbers. He says "The Highest Common Factor (HCF) of my two numbers is 3 The Lowest Common Multiple (LCM) of my two numbers is 45" Write down two numbers that James could be thinking of.

Answer 1

Answer: (3,45) and (15,9)

Explanation:

LCM x HCF = 45*3 = 135

so, the pairs which has HCF as 3 and LCM as 45 are (3,45) and (15,9)