How do you get the least common multiple of 12 20 and 24?

Answer 1

2 x 2 x 3 = 12

2 x 2 x 5 = 20

2 x 2 x 2 x 3 = 24

Multiply the highest amount of each factor.

2 x 2 x 2 x 3 x 5 = 120, the LCM

Answer 2

1220 = 2^2*5*6124 = 2^3*3

LCM = The product of each prime factor raised to its highest power is 2^3*3*5*61 = 7320.