What is the lcm of 4 and 12?

The least common multiple (LCM) of 4 and 12 is the smallest number that is a multiple of both 4 and 12. To find the LCM, you can list the multiples of both numbers and find the smallest number that appears in both lists.

The multiples of 4 are: 4, 8, 12, 16, 20, 24, 28, 32, 36, ...

The multiples of 12 are: 12, 24, 36, 48, 60, ...

From the lists, you can see that the smallest number that is a multiple of both 4 and 12 is 12. Therefore, the LCM of 4 and 12 is 12.