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What is the LCM of 28 36 and 45?
The least common multiple of the numbers 28, 36 and 45 is 1,260.
What is the least common multiple of 30 45 60 and 105?
Least common multiple for 36 and 60 and 135 is 540.
What is the first three common multiples of 6 and 9?
The first common multiple is 18. (9*2=18, 6*3=18) (9*3=27, 27/6 is a fraction) The second common multiple is 36. (9*4=36, 6*6=36) (9*5=45, 45/6 is a fraction) The third common multiple is 54. (9*6=54, 6*9=54)
What is the least common multiple of 15 and 45?
45 is a multiple of both 15 and itself, so 45 is the least common multiple of 15 and 45.
What is the least common multiple for 20 and 36?
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.
