Question

Two numbers, A and B, are written as a product of prime factors.

A = 2³ x 3² x 5²
B= 2² x 3 x 5 x 7
Find the highest common factor (HCF) of A and B.

Answer 1

60

Explanation:

Between A and B, they both have 2*2*3*5 which multiplies to 60 and is therefore the greatest common factor