What is the lcm of 5 and 10?

The LCM (Least Common Multiple) of 5 and 10 is 10.

To find the LCM, we list the multiples of 5 and 10:

Multiples of 5: 5, 10, 15, 20, 25, 30, ...

Multiples of 10: 10, 20, 30, 40, 50, ...

The least common multiple of 5 and 10 is the smallest number that appears in both lists, which is 10. Therefore, the LCM of 5 and 10 is 10.