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Anonymous
The LCM of 18, 56, and 84 is 504.
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The Least Common Multiple (LCM) of 18, 54, and 84 is 756.
The only common factor is 2, so the LCM = 18 x 56 / 2 = 9 x 56 = 504
The LCM is 56.
The LCM of 12, 84 is 84.