step 1: list all of the prime numbers that go into 30 and 24.
2*3*5 =30
2*2*2*3=24
step 2: find all the common prime numbers between both sets.
2*3*5 =30
2*2*2*3=24
2*3
step 3: multiply your answer.
2*3=6
6 is the greatest common factor
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The Least Common Multiple (LCM) for 24 30 42 is 840.
Least common multiple of 24 and 30 is 120.
Least common multiple of 16 and 24 and 30 is 240.
It is: 30
The Least Common Multiple (LCM) for 24 30 28 60 is 840.