Question

Find the HCF and LCM of 12, 72 and 120 by prime factorisation method

Answer 1

HCF

=720

LCM

=360

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Answer 2

Answer:

LCM is given in the clipped document. So

$2 \times 2 \times 2 \times 3 \times 3 \times 5 = 360$

So the lcm is 360 and the hcf is 12 only