The least common multiple, or LCM, is the smallest positive integer that all the members of a given set of numbers will divide into evenly with no remainder.
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The least common multiple of 12 and 30 is 60. 60/12=5 and 60/30=2.
The GCF is 27. The LCM is 81.
The LCM is 36. In this case it is easy to look at the multiples of 12. The first one is 12x1 and that does not work. 24 is 12x2 and 9 does not go into that. But 36 is 12x3 and both 6 and 9 divide it evenly. So that tells us the LCM is 36.
The least common multiple of 42 and 126 is 126.
Least Common Multiple (LCM) for 39 23 is 897.