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Expressing each number as the product of prime numbers can help a lot.

First of all, we will find the greatest number which divides both number and then it is multiplied with other numbers in prime factorization of 34 and 20.

Here the greatest number which divides both is 2.

34: 2x17 and 20: 2x2x5

L.C.M. = 2x17x2x5 = 34x10 = 340

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14y ago

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