What is the lcm of 10 and 15?

The least common multiple (LCM) of 10 and 15 is the smallest number that is a multiple of both 10 and 15.

To find the LCM of 10 and 15, you can start by listing out the multiples of each number and finding the common multiple.

The multiples of 10 are: 10, 20, 30, 40, 50, ... The multiples of 15 are: 15, 30, 45, 60, ...

From the list above, you can see that 30 is the smallest number that is a multiple of both 10 and 15. Therefore, the LCM of 10 and 15 is 30.

So, LCM(10, 15) = 30.