What is the LCM of 71 and 142?

What's the Least Common Multiple (LCM) of 71 and 142?

Answer

LCM of 71 and 142 is

142

First common multiples: 142, 284, 426, …

As a common denominator: multiply the top and bottom of x/71 by 2.

71 divides 142 (142 ÷ 71 = 2), so the LCM is the larger number itself.

71 — prime

142 = 2 × 71

Prime	71	142	Highest power
2	—	2	2
71	71	71	71

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

LCM = 2 × 71 = 142

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