Question

Find the LCM and HCF of 12,72,108

Answer 1

LCM
12=2^2*3
70=2*5*7
108=2^2*3^3
LCM = 2^2*3^3*5*7=1220
HCF=2*3=6

Answer 2

12=2*2*3
72=2*2*2*3*3
108=2*2*3*3*3
LCM = 216
HCF=2*2*3=12