Prime factors: 18 = 2 x 3 x 3, 15 = 3 x 5 Ignore one of the common factor 3 and multiply others, ie 2 x 3 x 3 x 5 = 90 (5 x 18, 6 x 15)
It is: 90
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It is: 90
126 is the Lowest Common Multiple of 18 and 42
The LCM is: 72The lowest common multiple of 8 and 18 is 72
The lowest common multiple, or lowest common denominator, of 18 and 28 is 252.
The lowest common multiple of the numbers 18, 24 and 27 is 216.