Best Answer

Here's one method: list out the factors of each number:

- 8 = 1 x 2 x 2 x 2
- 12 = 1 x 2 x 2 x 3

Next multiply all factors together, like this: the common factors (they are common to both numbers and are in bold) are multiplied just one time each, then all other factors are multiplied as well. LCM = (1 x 2 x 2) x 2 x 3 = 24.

Q: How do you work out the LCM of 8and 12?

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24. 6 x 4 = 24 8 x 3 = 24 12 x 2 =24

The least common multiple (LCM) of 8 and 6 is 24.

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The LCM is 12.

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24. 6 x 4 = 24 8 x 3 = 24 12 x 2 =24

The least common multiple (LCM) of 8 and 6 is 24.