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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 761 · 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 221 and 289 =
  2. 2.HCF of 20 and 15 =
  3. 3.HCF of 322 and 115 =
  4. 4.HCF of 66 and 374 =
  5. 5.HCF of 234 and 54 =
  6. 6.HCF of 99 and 117 =
  7. 7.HCF of 64 and 104 =
  8. 8.HCF of 221 and 156 =
  9. 9.HCF of 286 and 396 =
  10. 10.HCF of 150 and 170 =
  11. 11.HCF of 66 and 352 =
  12. 12.HCF of 336 and 360 =
  13. 13.HCF of 270 and 75 =
  14. 14.HCF of 228 and 156 =
  15. 15.HCF of 80 and 288 =
  16. 16.HCF of 119 and 105 =
  17. 17.HCF of 152 and 96 =
  18. 18.HCF of 132 and 154 =
  19. 19.HCF of 36 and 66 =
  20. 20.HCF of 408 and 120 =
  21. 21.HCF of 48 and 360 =
  22. 22.HCF of 38 and 8 =
  23. 23.HCF of 168 and 120 =
  24. 24.HCF of 130 and 40 =
  25. 25.HCF of 204 and 289 =
  26. 26.HCF of 323 and 136 =
  27. 27.HCF of 112 and 288 =
  28. 28.HCF of 175 and 150 =
  29. 29.HCF of 52 and 80 =
  30. 30.HCF of 153 and 187 =
  31. 31.HCF of 56 and 44 =
  32. 32.HCF of 10 and 55 =
  33. 33.HCF of 418 and 132 =
  34. 34.HCF of 70 and 77 =
  35. 35.HCF of 221 and 102 =
  36. 36.HCF of 72 and 204 =
  37. 37.HCF of 36 and 48 =
  38. 38.HCF of 286 and 66 =
  39. 39.HCF of 323 and 204 =
  40. 40.HCF of 126 and 112 =

Answer key

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

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