The LCM of 18 and 24 is 72.
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LCM(60, 18, 24) = 144.
72
The least common multiple (LCM) refers to a multiple that is COMMON to two or more numbers. You have only one number in the question! The least multiple of a number is itself.
The least common factor of any set of positive integers is 1. The greatest common multiple is an infinite amount and not very practical.
the first 2 common multiple of 18 and 32 is 288 and 576