Question

LCM of 576 and 720 is 2,880,find their HCF

Answer 1

The lcm of 576 and 720 is 2880.

Steps to find LCM

Find the prime factorization of 576
576 = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3
Find the prime factorization of 720
720 = 2 × 2 × 2 × 2 × 3 × 3 × 5
Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

LCM = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5
LCM = 2880