The LCM is: 84
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The least common multiple of the numbers 21 and 60 is 420.
126The Least Common Multiple (LCM) for 18 21 is 126.It is 126
The Least Common Multiple of 21 and 30 is 210.
The LCM is: 21
the answer 2 Ur question my friend is 84 i hope this helped u with something