Question

find the LCM of 72 and 120 by prime factorization​

Answer 1

HEY MATE HERE IS YOUR ANSWER--

Find the prime factorization of 72

72 = 2 × 2 × 2 × 3 × 3

Find the prime factorization of 120

120 = 2 × 2 × 2 × 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 × 3 × 3 × 5

LCM = 360

Answer 2

120=2*2*2*3*5

72=2*2*2*3*3

LCM=8*9*5=360