Find the LCM of:

Question

72 and 99
72 and 54

Answer 1

72 = 2^3 3^2
99 = 3^2 11
54 = 2 3^3

LCM(72,99) = 2^3 3^2 11 = 792
LCM(72,54) = 2^3 3^3 = 216