Prime factors of:
6 ..=... 2 x 3
21..= .... ...3 x 7
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LCM= ..2 x 3 x 7
Answer: LCM = 42
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The LCM of 4, 12, and 27 is 108
12 is a factor of 24 so you need only consider the LCM of 20 and 24.20 = 4*5 24 = 4*6 So the LCM is 4*5*6 = 120.
12 3x4=12 4x3=12 12x1=12
The Least Common Multiple (LCM) for 12 30 4 is 60.
Since 12 is a multiple of 4, it is automatically the LCM.