Question

Find the hcf and lcm of 48 and 72 by prime factorisation method

Answer 1

Answer:

The prime factorization of 48 is: 2 x 2 x 2 x 2 x 3.

The prime factorization of 72 is: 2 x 2 x 2 x 3 x 3.

Eliminate the duplicate factors of the two lists, then multiply them once with the remaining factors of the lists to get lcm(48,48) = 144.

Hope it helps you