Common factor of 12 and 9
- Common factor of 12 and 90
- Common factor of 12 and 92
- Common factor of 12 and 96
- Common factor of 12 and 99
- Greatest common factor of 12 and 9
- Least common factor of 12 and 9
- Highest common factor of 12 and 9
- Greatest common factor of 12 and 96
- Lowest common factor of 12 and 9
- Greatest common factor of 12 9 and 15
- Greatest common factor of 12 9 and 18
- Highest common factor of 9 12 and 18
- Least common factor of 4 9 and 12
- Greatest common factor of 12 and 90
- Highest common factor of 12 and 90