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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 716 · 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 88 and 77 =
  2. 2.HCF of 22 and 121 =
  3. 3.HCF of 70 and 65 =
  4. 4.HCF of 78 and 65 =
  5. 5.HCF of 276 and 391 =
  6. 6.HCF of 238 and 168 =
  7. 7.HCF of 16 and 38 =
  8. 8.HCF of 247 and 156 =
  9. 9.HCF of 105 and 90 =
  10. 10.HCF of 156 and 72 =
  11. 11.HCF of 187 and 121 =
  12. 12.HCF of 176 and 242 =
  13. 13.HCF of 228 and 36 =
  14. 14.HCF of 399 and 147 =
  15. 15.HCF of 44 and 187 =
  16. 16.HCF of 160 and 300 =
  17. 17.HCF of 54 and 66 =
  18. 18.HCF of 153 and 36 =
  19. 19.HCF of 81 and 36 =
  20. 20.HCF of 25 and 40 =
  21. 21.HCF of 80 and 224 =
  22. 22.HCF of 240 and 176 =
  23. 23.HCF of 15 and 57 =
  24. 24.HCF of 308 and 242 =
  25. 25.HCF of 30 and 108 =
  26. 26.HCF of 112 and 144 =
  27. 27.HCF of 50 and 110 =
  28. 28.HCF of 33 and 36 =
  29. 29.HCF of 110 and 99 =
  30. 30.HCF of 65 and 25 =
  31. 31.HCF of 84 and 216 =
  32. 32.HCF of 26 and 91 =
  33. 33.HCF of 110 and 20 =
  34. 34.HCF of 242 and 176 =
  35. 35.HCF of 77 and 55 =
  36. 36.HCF of 180 and 70 =
  37. 37.HCF of 22 and 187 =
  38. 38.HCF of 33 and 30 =
  39. 39.HCF of 288 and 168 =
  40. 40.HCF of 84 and 114 =

Answer key

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

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