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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 149 · 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 10 and 95 =
  2. 2.HCF of 189 and 420 =
  3. 3.HCF of 36 and 20 =
  4. 4.HCF of 119 and 98 =
  5. 5.HCF of 72 and 44 =
  6. 6.HCF of 180 and 48 =
  7. 7.HCF of 68 and 85 =
  8. 8.HCF of 6 and 4 =
  9. 9.HCF of 196 and 126 =
  10. 10.HCF of 76 and 80 =
  11. 11.HCF of 306 and 270 =
  12. 12.HCF of 304 and 57 =
  13. 13.HCF of 153 and 272 =
  14. 14.HCF of 54 and 96 =
  15. 15.HCF of 20 and 6 =
  16. 16.HCF of 6 and 14 =
  17. 17.HCF of 200 and 325 =
  18. 18.HCF of 22 and 12 =
  19. 19.HCF of 210 and 45 =
  20. 20.HCF of 342 and 288 =
  21. 21.HCF of 42 and 357 =
  22. 22.HCF of 42 and 399 =
  23. 23.HCF of 125 and 175 =
  24. 24.HCF of 38 and 34 =
  25. 25.HCF of 36 and 135 =
  26. 26.HCF of 20 and 8 =
  27. 27.HCF of 299 and 115 =
  28. 28.HCF of 100 and 325 =
  29. 29.HCF of 440 and 286 =
  30. 30.HCF of 48 and 54 =
  31. 31.HCF of 39 and 42 =
  32. 32.HCF of 26 and 38 =
  33. 33.HCF of 168 and 60 =
  34. 34.HCF of 84 and 49 =
  35. 35.HCF of 286 and 352 =
  36. 36.HCF of 50 and 130 =
  37. 37.HCF of 88 and 198 =
  38. 38.HCF of 46 and 345 =
  39. 39.HCF of 125 and 300 =
  40. 40.HCF of 154 and 143 =

Answer key

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

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