The Least Common Multiple of 54 and 81 is 162.
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The least common multiple of the numbers 54, 81 and 135 is 810.
1890
The Least Common Multiple of 9 and 81 is 81.
The Least Common Multiple of 81 and 165 is 4,455.
Assuming that least common refers to the least common multiple, LCM(27, 81) = 81