- 1. What is the GCF of 24, 16
A) 6
B) 4
C) 8
D) 2
- 2. What is the GCF of 70,49
A) 7
B) 10
C) 2
D) 3
- 3. What is the GCF of 44, 11
A) 4
B) 11
C) 2
- 4. What is the GCF of 21, 49
A) 3
B) 7
C) 6
D) 9
- 5. What is the GCF of 56, 24
A) 8
B) 3
C) 9
D) 11
- 6. What is the GCF of 35, 25
A) 3
B) 7
C) 5
D) 6
- 7. What is the GCF of 24, 20
A) 2
B) 3
C) 6
D) 4
- 8. What is the GCF of 25, 35
A) 3
B) 4
C) 7
D) 5
- 9. What is the GCF of 54, 81
A) 9
B) 3
C) 8
D) 11
- 10. What is the GCF of 15,40
A) 8
B) 5
C) 1
D) 3
- 11. What is the GCF of 28, 63
A) 9
B) 2
C) 3
D) 7
- 12. What is the GCF of 36, 18
A) 3
B) 6
C) 9
- 13. What is the GCF of 30, 60
A) 5
B) 15
C) 30
D) 2
- 14. What is the GCF of 24, 60
A) 2
B) 12
C) 6
D) 3
- 15. What is the GCF of 15, 10
A) 1
B) 2
C) 5
D) 3
- 16. What is the GCF of 12, 24
A) 6
B) 12
C) 4
D) 3
- 17. What is the GCF of 18, 14
A) 2
B) 3
C) 7
D) 6
- 18. What is the GCF of 60, 80
A) 2
B) 6
C) 4
D) 20
- 19. What is the GCF of 72, 90
A) 3
B) 9
C) 6
- 20. What is the GCF of 56, 49
A) 3
B) 4
C) 2
D) 7
- 21. What is the GCF of 15, 30
A) 2
B) 15
C) 10
D) 5
- 22. What is the GCF of 48, 30
A) 12
B) 15
C) 6
D) 8
- 23. What is the GCF of 35, 30
A) 15
B) 2
C) 5
D) 10
- 24. What is the GCF of 44, 99
A) 9
B) 11
C) 4
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