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What is the LCM of 20 and 88?

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The least common multiple (LCM) of numbers a and b is the smallest positive integer that is divisible by both a and b.

To find the LCM of 20 and 88, proceed as follows:

* List all prime factors of each number:

20 = 2 x 2 x 5

88 = 2 x 2 x 2 x 11

* Multiply all prime numbers found as many times as they occur most often.

LCM = 2 x 2 x 2 x 5 x 11

LCM = 440

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