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First, factor each number and express this way:

12 = 22 x 3

22 = 2 x 11

30 = 2 x 3 x 5

Now, take the greatest power of each factor and find the product: 22 x 3 x 5 x 11= 660 is the LCM

Note: I selected only the 22 because it was the greatest power of 2 than any other factor of "2" in the other numbers. I selected one 3 beause it was the greatest power of 3, and one 5 and one 11 because they were unique factors. This method will effectively find the LCM of any set of numbers.

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14y ago
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13y ago

The LCM is 660.

12 = 2 x 2 x 3

22 = 2 x 11

30 = 2 x 3 x 5

LCM = 22 x 3 x 5 x 11 = 660

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Wiki User

13y ago

Factor each one. Then use each Prime number the most each one was used in any number.

12=2x2x3

22=2x11

30=2x3x5

LCM=2x2x3x5x11=660

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Wiki User

8y ago

The LCM is 660.

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Wiki User

12y ago

The LCM is: 660

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Q: What is the LCM of 12 22 and 30?
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