Question

by using prime factorisation method find hcf and lcm of 72,126,168. also show that hcf ×lcm is not equal to product of three numbers

Answer 1

Hii friend,

Prime factorisation of 72 = 2 × 2 × 2 × 3 × 3

Prime factorisation of 126 = 2 × 3 × 3 × 7

Prime factorisation of 168 = 2 × 2 × 2 × 3 × 7

HCF of 72 , 126 and 168 = 2 × 3 = 6

LCM of 72 , 126 and 168 = 2 × 3 × 2 × 2 × 3 × 3 × 7 = 1512.

Product of three numbers = 72 × 126 × 168 = 1524096.

Whereas,

Product of HCF and LCM = 1512 × 6 = 9072


Hence,

Product of three numbers is not equal to Product of their LCM and HCF


HOPE IT WILL HELP YOU... :-)

Answer 2

hope it helps you mark as brainliest