To find the least common multiple (LCM) of 4 and 6, we can list the multiples of each number:
Multiples of 4: 4, 8, 12, 16, 20, 24, ... Multiples of 6: 6, 12, 18, 24, ...
The smallest multiple that appears in both lists is 12.
Therefore, the least common multiple of 4 and 6 is 12.