The least common multiple of 13 and 81 is 1,053.
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.
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Since 63 is a multiple of 9, it is automatically the LCM of this problem.
The least common multiple of the numbers 190 and 63 is 11,970.
The Least Common Multiple of 21, 63, 147: 441
least common multiple of 63 and 84 is 252.
Since 63 is a multiple of 9, it is automatically the LCM.