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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 824 · 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 176 and 286 =
  2. 2.HCF of 24 and 28 =
  3. 3.HCF of 39 and 247 =
  4. 4.HCF of 12 and 54 =
  5. 5.HCF of 55 and 35 =
  6. 6.HCF of 255 and 289 =
  7. 7.HCF of 342 and 252 =
  8. 8.HCF of 42 and 114 =
  9. 9.HCF of 30 and 45 =
  10. 10.HCF of 414 and 253 =
  11. 11.HCF of 76 and 60 =
  12. 12.HCF of 18 and 81 =
  13. 13.HCF of 160 and 180 =
  14. 14.HCF of 374 and 66 =
  15. 15.HCF of 24 and 52 =
  16. 16.HCF of 132 and 48 =
  17. 17.HCF of 176 and 77 =
  18. 18.HCF of 114 and 361 =
  19. 19.HCF of 345 and 92 =
  20. 20.HCF of 60 and 68 =
  21. 21.HCF of 48 and 304 =
  22. 22.HCF of 42 and 105 =
  23. 23.HCF of 133 and 285 =
  24. 24.HCF of 225 and 325 =
  25. 25.HCF of 28 and 24 =
  26. 26.HCF of 135 and 120 =
  27. 27.HCF of 48 and 36 =
  28. 28.HCF of 299 and 138 =
  29. 29.HCF of 220 and 80 =
  30. 30.HCF of 25 and 95 =
  31. 31.HCF of 15 and 10 =
  32. 32.HCF of 125 and 75 =
  33. 33.HCF of 77 and 112 =
  34. 34.HCF of 312 and 408 =
  35. 35.HCF of 195 and 135 =
  36. 36.HCF of 105 and 45 =
  37. 37.HCF of 336 and 264 =
  38. 38.HCF of 28 and 126 =
  39. 39.HCF of 102 and 85 =
  40. 40.HCF of 285 and 90 =

Answer key

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

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