20-10-2015
Mathematics

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find the LCM of 13 and 39

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20-10-2015

The answer is 78. Keep adding 13 to 13 and 39 to 39 till you get two of the same numbers in both.

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20-10-2015

13 is a factor of 39.
So 39 is a multiple of both numbers.
That means it's their least common multiple.

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