LCM is 36
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36
Since the gretaest common factor of 18 and 4 is 2, 18 = 2(9) 4 = 2(2), then the least common multiple is 18(2) or 4(9) = 36.
As 18 = 9 x 2 then 18 is a multiple of 9 so the Least Common Multiple is 18!
90 is the least common multiple of 5, 9, 18, and 3.
The least common multiple of the numbers 4, 27 and 9 is 108.