Asked by Ann

Find the least common multiple (LCM) for each of the following groups of numbers

12, 20, and 35

Answers

Answered by drwls
That would be the number that contains the prime factors of all of the three numbers, for the maximum number of times that they appear in any single number.
12 = 3*2*2
20 = 2*2*5
35 = 5*7

The LCM is 2*2*3*5*7= 420
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