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Q) Using prime factorisation, find HCF and LCM of 96 and 120.

Ans:

By prime factorisation, we get:

96 = 25 x 3

and 120 = 23 x 3 x 5

∴ LCM = 25 x 3 x 5 = 480

And HCF = 23 x3 = 24

Therefore, LCM of given numbers is 480 and HCF is 24.

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