Name: ____________________
The Greatest Common Factor Ultimate Challenge 1. 24, 27=__________________ 2. 8, 14=___________________ 3. 24, 27=__________________ 4. 16, 12=__________________ 5. 12, 6=___________________ 6. 14, 16=__________________ 7. 16, 18=__________________ 8. 30, 15=__________________ 9. 20, 12=__________________ 10. 21, 15=__________________ 11. 18, 16=__________________ 12. 12, 18=__________________ 13. 15, 27=__________________ 14. 27, 18=__________________ 15. 12, 15=__________________ 16. 27, 21=__________________ 17. 8, 10=___________________ 18. 12, 14=__________________