LCM(3, 27, 35) = 945
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The LCM is 108.
To find the LCM of three numbers you first have to break them down into their prime factors. In this case: 27 = 3x3x3 18 = 2x3x3 10 = 2x5 The next step is to identify any duplicates and cross them out. In this case two numbers share two 3s as prime factors, and two numbers share a 2 as prime factor. That leaves us with 3, 3, 3, 2 and 5 as the prime factors to work with. Multiplying these together gives 270, and so the LCM of 27, 18 and 10 is 270.
The LCM is 3
2 x 2 x 3 = 12 3 x 3 x 3 = 27 2 x 2 x 3 x 3 x 3 = 108, the LCM
The LCM of 10, 20, 30, and 45 is 180