Question

find the LCM andHCF of 72 and 108 by factorised method​

Answer 1

Answer:

HCF & LCM Of 72 102

Step-by-step explanation:

factories 72=2*2*2*3*3

factories 108=2*2*3*3*3

now, for HCF find common no. in factories of 72 &108

HCF= 2*2*3*3

=24

LCM=2*2*2*3*3*3

=216

Answer 2

Step 1 -finding LCM of 72 and 108

factors of 72=2×2×2×3×3

factors of 108=2×2×3×3×3

Therefore LCM of 72 and 108 is 2×2×3×3=36(Ans)

Step 2-finding HCF of 72 and 108

common factors of 72 and 108 is

2×2×2×3×3×3

Therefore HCF of 72 and 108 is 216(Ans)