Question

Find the GCF of each set of numbers.
1. 6 and 9
2.4 and 8
3. 8 and 12
4. 6 and 15
5. 10 and 15
6. 9 and 12
7. 4 and 10
8. 5 and 20
9. 7 and 14
10. 8 and 11
11. 2 and 12
12. 9 and 21
help?

Answer 1

For 6 and 9 I know 3,2 is good and 2. 2,48,1