### Home > CC1MN > Chapter 6 > Lesson 6.3.3 > Problem6-94

6-94.

The first four multiples of $7$ are $7, 14, 21$, and $28$. Use this example to help you as you answer the questions below.

1. What are the first six multiples of $9$?

The first multiple of $9$ is $9(1) = 9$.
The second multiple of $9$ is $9(2) = 18$.
The third multiple of $9$ is $9(3) = ?$

2. What are the first six multiples of $12$?

Follow the hint in part (a), replacing $9$ with $12$.

3. What is the least common multiple of both $9$ and $12$?

This is the first number that appears in both of your lists from parts (a) and (b).

$36$
$9(4) = 36$
$12(3) = 36$

4. What is the greatest common factor of both $9$ and $12$?

• Remember that something is a factor of $9$ if $9$ is a multiple of that number. Try making lists of factors for both $9$ and $12$.