What is the LCM of 32 and 128?

What's the Least Common Multiple (LCM) of 32 and 128?

Answer

LCM of 32 and 128 is

128

First common multiples: 128, 256, 384, …

As a common denominator: multiply the top and bottom of x/32 by 4.

32 divides 128 (128 ÷ 32 = 4), so the LCM is the larger number itself.

32 = 2⁵

128 = 2⁷

Prime	32	128	Highest power
2	2⁵	2⁷	2⁷

LCM = 2⁷ = 128

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