Find the HCF and LCM of 84, 90 and 120 by prime factorization method.

CBSE Class 10 Maths PYQ · Real Numbers · Find lcm & hcf · 2 Marks · July 2023 · Standard

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372 Marks · July 2023 · Standard
Find the HCF and LCM of $84, 90$ and $120$ by prime factorization method.
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$84 = 2^2 \times 3\times7$
$90 = 2 \times 3^2 \times 5$
$120 = 2^3 \times 3\times5$
HCF = $6$
LCM = $2520$
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