What is the LCM of 12 22 and 30?

Answer 1

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.

Answer 2

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

Answer 3

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

Answer 4

The LCM is 660.

Answer 5

The LCM is: 660