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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 631 · 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 64 and 88 =
  2. 2.HCF of 49 and 126 =
  3. 3.HCF of 114 and 60 =
  4. 4.HCF of 16 and 12 =
  5. 5.HCF of 64 and 76 =
  6. 6.HCF of 160 and 260 =
  7. 7.HCF of 112 and 96 =
  8. 8.HCF of 264 and 96 =
  9. 9.HCF of 88 and 56 =
  10. 10.HCF of 143 and 176 =
  11. 11.HCF of 240 and 216 =
  12. 12.HCF of 275 and 150 =
  13. 13.HCF of 117 and 208 =
  14. 14.HCF of 228 and 240 =
  15. 15.HCF of 54 and 288 =
  16. 16.HCF of 168 and 60 =
  17. 17.HCF of 51 and 340 =
  18. 18.HCF of 56 and 96 =
  19. 19.HCF of 76 and 8 =
  20. 20.HCF of 336 and 315 =
  21. 21.HCF of 120 and 380 =
  22. 22.HCF of 57 and 24 =
  23. 23.HCF of 140 and 160 =
  24. 24.HCF of 216 and 90 =
  25. 25.HCF of 76 and 20 =
  26. 26.HCF of 110 and 352 =
  27. 27.HCF of 135 and 60 =
  28. 28.HCF of 38 and 16 =
  29. 29.HCF of 100 and 360 =
  30. 30.HCF of 162 and 45 =
  31. 31.HCF of 35 and 126 =
  32. 32.HCF of 352 and 330 =
  33. 33.HCF of 90 and 75 =
  34. 34.HCF of 252 and 90 =
  35. 35.HCF of 30 and 22 =
  36. 36.HCF of 6 and 8 =
  37. 37.HCF of 34 and 36 =
  38. 38.HCF of 125 and 100 =
  39. 39.HCF of 252 and 270 =
  40. 40.HCF of 345 and 437 =

Answer key

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

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