What is the LCM of 8 and 64?

What's the Least Common Multiple (LCM) of 8 and 64?

Answer

LCM of 8 and 64 is

64

First common multiples: 64, 128, 192, …

As a common denominator: multiply the top and bottom of x/8 by 8.

8 divides 64 (64 ÷ 8 = 8), so the LCM is the larger number itself.

8 = 2³

64 = 2⁶

Prime	8	64	Highest power
2	2³	2⁶	2⁶

LCM = 2⁶ = 64

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