Find the least common multiple of 2 and 10.
The least common multiple (LCM) of 2 and 10 can be found by listing out the multiples of each number and finding the smallest number that appears in both lists.
Multiples of 2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, ...
Multiples of 10: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ...
The smallest number that appears in both lists is 10, so the LCM of 2 and 10 is 10.