The LCM of 10, 20, 30, and 45 is 180
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The LCM of 20 and 35 is 140.20: 2*2*535: 5*72*2*5*7 = 140The Least Common Multiple (LCM) of 20 and 35 is 140.
the lowest common multiple for 5, 9, and 2 is
The LCM is 20.
The LCM of 20, 36, and 45 is 180. We look at the largest number, 45. For it to be a multiple of 20, it must end with a zero and have an even second-last digit. To get 45 to end with a zero, we can multiply it by 2, which gives us 90. 90 does not have an even second-last digit, so once again we multiply it by another 2, which gives us 180. 180 ends with a 0, and has an even second-last digit. If you then attempt to divide 180 by 20, 36 and 45, you'll find that it divides perfectly into all 3.
14 = 2*7 45 = 5*9 LCM = 14*45 = 630