How do you find the Least Common Multiple or (LCM) of 12, 48, and 72?

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asked Mar 24, 2017 40.4k views

2 Answers

Shahriar Zaman · Answer 1 · 2017-03-25T17:05:31+0000

LCM
factor them
12=2*2*3 -> two 2's, and one 3
48=2*2*2*2*3 -> four 2's and one 3
72=2*2*2*3*3 -> three 2's and two 3's

LCM includes all of them
the max number of 2's is 4
the max number of 3's is 2
lcm=2*2*2*2*3*3=144

How do you find the Least Common Multiple or (LCM) of 12, 48, and 72?

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