18 = 2 x 3 x 3, 20 = 2 x 2 x 5, 30 = 2 x 3 x 5: LCM is therefore 2 x 2 x 3 x 3 x 5 ie 180
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The Least Common Multiple (LCM) for 18 20 30 is 180.
The Least Common Multiple (LCM) for 18 24 20 is 360.
The greatest common factor is 2 and the least common multiple is also 2.
The Least Common Multiple (LCM) for 20 8 18 is 360.
The Least Common Multiple (LCM) for 5 20 is 20.