What is the LCM of 13 and 26?

What's the Least Common Multiple (LCM) of 13 and 26?

Answer

LCM of 13 and 26 is

26

First common multiples: 26, 52, 78, …

As a common denominator: multiply the top and bottom of x/13 by 2.

13 divides 26 (26 ÷ 13 = 2), so the LCM is the larger number itself.

13 — prime

26 = 2 × 13

Prime	13	26	Highest power
2	—	2	2
13	13	13	13

— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.

LCM = 2 × 13 = 26

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