# How do you find the least common multiple of 9, 6, and 2?

##### 1 Answer

Jan 15, 2017

Factor each number to its prime factors multiply all the prime factors together, use each prime number only once.

#### Explanation:

9 can be factored into

6 can be factored into

( since nine already has two factors of 3 the factor of three from six does not need to be used)

2 can be factored into

( since six already has a factor of 2 the second factor of is not needed)

So multiplying the unique factors gives

The least common multiple is 18