Question

4 Given that
120 = 2 × 2 ×2×3×5
70 = 2 x 5 x 7
30 = 2 × 3 × 5
a find the highest common factor
b find the lowest common multiple.

Answer 1

Answer:

hcf is 2*5=10

lcm is 2*2*2*5*3*7*3