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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 450 · 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 35 and 84 =
  2. 2.HCF of 169 and 117 =
  3. 3.HCF of 247 and 234 =
  4. 4.HCF of 285 and 152 =
  5. 5.HCF of 114 and 133 =
  6. 6.HCF of 24 and 84 =
  7. 7.HCF of 88 and 66 =
  8. 8.HCF of 57 and 6 =
  9. 9.HCF of 190 and 20 =
  10. 10.HCF of 253 and 345 =
  11. 11.HCF of 75 and 255 =
  12. 12.HCF of 345 and 161 =
  13. 13.HCF of 162 and 63 =
  14. 14.HCF of 12 and 27 =
  15. 15.HCF of 12 and 22 =
  16. 16.HCF of 114 and 30 =
  17. 17.HCF of 60 and 76 =
  18. 18.HCF of 112 and 120 =
  19. 19.HCF of 242 and 44 =
  20. 20.HCF of 22 and 4 =
  21. 21.HCF of 88 and 198 =
  22. 22.HCF of 340 and 80 =
  23. 23.HCF of 198 and 220 =
  24. 24.HCF of 65 and 91 =
  25. 25.HCF of 190 and 57 =
  26. 26.HCF of 119 and 126 =
  27. 27.HCF of 44 and 143 =
  28. 28.HCF of 117 and 126 =
  29. 29.HCF of 112 and 48 =
  30. 30.HCF of 242 and 352 =
  31. 31.HCF of 437 and 115 =
  32. 32.HCF of 26 and 24 =
  33. 33.HCF of 40 and 64 =
  34. 34.HCF of 340 and 221 =
  35. 35.HCF of 171 and 36 =
  36. 36.HCF of 140 and 42 =
  37. 37.HCF of 84 and 78 =
  38. 38.HCF of 380 and 320 =
  39. 39.HCF of 24 and 57 =
  40. 40.HCF of 119 and 49 =

Answer key

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

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