Question

What is the least common multiple of 4 and 8?

A) 4
B) 8
C) 12
D) 16

Answer 1

The least common multiple of 4 and 8 is 8 (option B).

Step-by-step explanation:

The least common multiple (LCM) of 4 and 8 can be found by listing the multiples of each number and finding the smallest number that appears in both lists.

For 4, the multiples are: 4, 8, 12, 16, 20, 24, 28, 32, ...

For 8, the multiples are: 8, 16, 24, 32, 40, 48, 56, 64, ...

We can see that the smallest number that appears in both lists is 8. Therefore, the least common multiple of 4 and 8 is 8 (option B).