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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 241 · 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 128 and 48 =
  2. 2.HCF of 234 and 108 =
  3. 3.HCF of 22 and 28 =
  4. 4.HCF of 224 and 266 =
  5. 5.HCF of 9 and 30 =
  6. 6.HCF of 102 and 78 =
  7. 7.HCF of 54 and 171 =
  8. 8.HCF of 18 and 51 =
  9. 9.HCF of 165 and 195 =
  10. 10.HCF of 408 and 144 =
  11. 11.HCF of 119 and 98 =
  12. 12.HCF of 16 and 60 =
  13. 13.HCF of 90 and 84 =
  14. 14.HCF of 425 and 175 =
  15. 15.HCF of 75 and 55 =
  16. 16.HCF of 133 and 342 =
  17. 17.HCF of 8 and 60 =
  18. 18.HCF of 460 and 207 =
  19. 19.HCF of 176 and 64 =
  20. 20.HCF of 54 and 90 =
  21. 21.HCF of 75 and 100 =
  22. 22.HCF of 96 and 312 =
  23. 23.HCF of 55 and 75 =
  24. 24.HCF of 250 and 75 =
  25. 25.HCF of 147 and 315 =
  26. 26.HCF of 272 and 144 =
  27. 27.HCF of 96 and 88 =
  28. 28.HCF of 68 and 72 =
  29. 29.HCF of 108 and 126 =
  30. 30.HCF of 180 and 54 =
  31. 31.HCF of 150 and 285 =
  32. 32.HCF of 315 and 168 =
  33. 33.HCF of 28 and 60 =
  34. 34.HCF of 27 and 63 =
  35. 35.HCF of 14 and 18 =
  36. 36.HCF of 231 and 84 =
  37. 37.HCF of 80 and 136 =
  38. 38.HCF of 115 and 69 =
  39. 39.HCF of 30 and 8 =
  40. 40.HCF of 35 and 14 =

Answer key

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

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