lcm(21, 56) = 168.
21 = 3 x 7
56 = 2^3 x 7
lcm = 2^3 x 3 x 7 = 168
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The least common multiple (LCM) of 21, 56, and 63 is 504.
The LCM is: 56
The least common multiple of 4 , 14 , 8 = 56
14, 28, 42, 56, 70....
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 56 and 96 is 672.