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 4, 5, and 21 is 420.
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The least common multiple of 4 and 5 is 20. The least common multiple of 15 and 20 is 60. (Thus, the least common multiple of 4, 5, and 15 is 60.) Any multiple of 60 will also be a multiple of 4, 5, and 15.
44 is the least common multiple of 4 and 22.44It is: 44
The least common multiple of 4, 12, and 32 is 96.
The least common multiple of 4, 8, and 16 is 16.
The Least Common Multiple (LCM) of 4, 10, and 20 is 20.