Mathematics Worksheet/Greatest Common Factors

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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