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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 703 · 40 sums
TalentJR

The trick (Sankalana-Vyavakalanabhyam): Take the smaller number away from the bigger one, as many times as it goes. Now use the smaller number and what is left. Repeat until nothing is left: the last number before 0 is the HCF.

NameDateTime takenScore ___ / 40
  1. 1.HCF of 242 and 418 =
  2. 2.HCF of 45 and 95 =
  3. 3.HCF of 45 and 65 =
  4. 4.HCF of 78 and 42 =
  5. 5.HCF of 323 and 119 =
  6. 6.HCF of 49 and 28 =
  7. 7.HCF of 14 and 12 =
  8. 8.HCF of 132 and 77 =
  9. 9.HCF of 152 and 120 =
  10. 10.HCF of 91 and 126 =
  11. 11.HCF of 306 and 323 =
  12. 12.HCF of 9 and 39 =
  13. 13.HCF of 252 and 266 =
  14. 14.HCF of 190 and 80 =
  15. 15.HCF of 16 and 10 =
  16. 16.HCF of 165 and 22 =
  17. 17.HCF of 144 and 136 =
  18. 18.HCF of 35 and 133 =
  19. 19.HCF of 140 and 49 =
  20. 20.HCF of 352 and 418 =
  21. 21.HCF of 126 and 171 =
  22. 22.HCF of 133 and 247 =
  23. 23.HCF of 352 and 418 =
  24. 24.HCF of 117 and 108 =
  25. 25.HCF of 10 and 18 =
  26. 26.HCF of 176 and 121 =
  27. 27.HCF of 18 and 57 =
  28. 28.HCF of 114 and 102 =
  29. 29.HCF of 150 and 170 =
  30. 30.HCF of 95 and 209 =
  31. 31.HCF of 69 and 184 =
  32. 32.HCF of 182 and 98 =
  33. 33.HCF of 64 and 24 =
  34. 34.HCF of 30 and 95 =
  35. 35.HCF of 300 and 275 =
  36. 36.HCF of 380 and 320 =
  37. 37.HCF of 6 and 32 =
  38. 38.HCF of 475 and 175 =
  39. 39.HCF of 255 and 119 =
  40. 40.HCF of 105 and 91 =

Answer key

  1. 22
  2. 5
  3. 5
  4. 6
  5. 17
  6. 7
  7. 2
  8. 11
  9. 8
  10. 7
  11. 17
  12. 3
  13. 14
  14. 10
  15. 2
  16. 11
  17. 8
  18. 7
  19. 7
  20. 22
  21. 9
  22. 19
  23. 22
  24. 9
  25. 2
  26. 11
  27. 3
  28. 6
  29. 10
  30. 19
  31. 23
  32. 14
  33. 8
  34. 5
  35. 25
  36. 20
  37. 2
  38. 25
  39. 17
  40. 7

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