What is the LCM of 9 and 27?

What's the Least Common Multiple (LCM) of 9 and 27?

Answer

LCM of 9 and 27 is

27

First common multiples: 27, 54, 81, …

As a common denominator: multiply the top and bottom of x/9 by 3.

9 divides 27 (27 ÷ 9 = 3), so the LCM is the larger number itself.

9 = 3²

27 = 3³

Prime	9	27	Highest power
3	3²	3³	3³

LCM = 3³ = 27

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