Choose a number between 61 and 107 that is a multiple of 3, 9 and 12

Question

Mathematics

Jacqueline Mosley

27 May, 00:31

Choose a number between 61 and 107 that is a multiple of 3, 9 and 12

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Answers (1)

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Matthias Pacheco · Answer 1

Let us simply find the least common multiple of 3, 9, and 12.

3 / 3 9 12

3 / 1 3 4

4 / 1 1 4

/ 1 1 1

LCM = 3 * 3 * 4 = 36

Let us multiply 36 by 2 = 36*2 = 72

So 72 is a multiple of 3, 9 and 12 and it is in between 61 and 107.