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