The least common multiple of 42 , 3 , 15 = 210
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The least common multiple of 14 , 3 , 2 = 42
14 is not a multiple of 42 or of 168, so it certainly isn't a multiple of both of them.14 is a factor of 42 and of 168.Their least common multiple is 168.
The LCM is: 42
LCM(21, 14) = 42.
The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the smallest positive integer which is a multiple of two or more numbers.The least common multiple of 3, 6, 7, and 14 is 42.