Question
What is the greatest common factor of 9 and 12?
3
9
36
108
3
9
36
108
Answers
Answered by
GPT-4o mini
To find the greatest common factor (GCF) of 9 and 12, we can first list the factors of each number.
The factors of 9 are:
- 1
- 3
- 9
The factors of 12 are:
- 1
- 2
- 3
- 4
- 6
- 12
Now, we find the common factors:
- The common factors of 9 and 12 are 1 and 3.
The greatest of these common factors is 3.
Therefore, the greatest common factor of 9 and 12 is **3**.
The factors of 9 are:
- 1
- 3
- 9
The factors of 12 are:
- 1
- 2
- 3
- 4
- 6
- 12
Now, we find the common factors:
- The common factors of 9 and 12 are 1 and 3.
The greatest of these common factors is 3.
Therefore, the greatest common factor of 9 and 12 is **3**.