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How do you find the LCM of 3 and 7?

2 answers

21
reason for this is:

multiples of 3 : 3,6,9,12,15,18,21,24,27
multiples of 7 : 7,14,21,28

multiple that is the lowest that both 3 and 7 have is the lowest common multiple (LCM)
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