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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 856 · 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 22 and 32 =
  2. 2.HCF of 266 and 84 =
  3. 3.HCF of 24 and 14 =
  4. 4.HCF of 20 and 50 =
  5. 5.HCF of 80 and 30 =
  6. 6.HCF of 24 and 51 =
  7. 7.HCF of 399 and 105 =
  8. 8.HCF of 152 and 95 =
  9. 9.HCF of 266 and 224 =
  10. 10.HCF of 207 and 46 =
  11. 11.HCF of 39 and 9 =
  12. 12.HCF of 80 and 144 =
  13. 13.HCF of 68 and 28 =
  14. 14.HCF of 6 and 22 =
  15. 15.HCF of 54 and 66 =
  16. 16.HCF of 126 and 36 =
  17. 17.HCF of 15 and 50 =
  18. 18.HCF of 66 and 121 =
  19. 19.HCF of 300 and 325 =
  20. 20.HCF of 360 and 234 =
  21. 21.HCF of 221 and 26 =
  22. 22.HCF of 247 and 133 =
  23. 23.HCF of 26 and 40 =
  24. 24.HCF of 325 and 400 =
  25. 25.HCF of 45 and 39 =
  26. 26.HCF of 39 and 12 =
  27. 27.HCF of 18 and 16 =
  28. 28.HCF of 22 and 24 =
  29. 29.HCF of 128 and 104 =
  30. 30.HCF of 42 and 49 =
  31. 31.HCF of 260 and 220 =
  32. 32.HCF of 24 and 114 =
  33. 33.HCF of 119 and 42 =
  34. 34.HCF of 91 and 52 =
  35. 35.HCF of 208 and 272 =
  36. 36.HCF of 192 and 80 =
  37. 37.HCF of 16 and 26 =
  38. 38.HCF of 119 and 63 =
  39. 39.HCF of 72 and 64 =
  40. 40.HCF of 110 and 150 =

Answer key

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

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