Question

. Find the LCM of 12 and 32 by prime factorisation method.​

Answer 1

12 = 2*2*3

32 = 2*2*2*2*2

LCM = 3*2*2*2*2*2

        = 192

Please note that while taking out LCM, we usually multiply all the factors of both numbers together but we write a pair of common factors only one time. Like 2 is coming 2 times in both the factorization. So it is forming 2 pairs and we write a pair once only.

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