Mathematics Worksheet/Greatest Common Factors

Find the Greatest Common Factor of:

1. 3 and 6
2. 4 and 2
3. 7 and 14
4. 10 and 25
5. 13 and 39
6. 14 and 20
7. 6 and 14
8. 18 and 45
9. 22 and 33
10. 15 and 25
11. 24 and 36
12. 32 and 56
13. 25 and 65
14. 36 and 90
15. 42 and 63
16. 10 and 28
17. 27 and 63
18. 105 and 175
19. 32 and 60
20. 42 and 70
21. 75 and 150
22. 63 and 90
23. 48 and 75
24. 130 and 30
25. 46 and 23
26. 56 and 84
27. 75 and 125
28. 90 and 125
29. 65 and 26
30. 135 and 195
31. 220 and 440
32. 75 and 60
33. 12 and 60
34. 95 and 57
35. 48 and 84
36. 35, 50 and 120
37. 25, 75 and 150
38. 28, 56 and 84
39. 44, 55 and 77
40. 24, 36 and 90
41. 26, 39 and 130
42. 52, 26 and 39
43. 95, 133 and 57
44. 76, 38 and 114
45. 144, 36 and 48
46. 46, 23 and 92
47. 66, 33 and 22
48. 315, 210 and 75
49. 47, 94 and 147
50. 56, 70 and 190