The LCM is 1890.
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If that's 18, 54 and 63, the LCM is 378.
378!
It is: 756
The least common multiple of the numbers 18, 54 and 60 is 540.
The LCM is: 630just multiply 90*63 and what i do is go google and look up least common multiple calculator and there you have different options and pick the one that best fits your answer