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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 848 · 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 18 and 48 =
  2. 2.HCF of 88 and 48 =
  3. 3.HCF of 66 and 209 =
  4. 4.HCF of 20 and 26 =
  5. 5.HCF of 77 and 187 =
  6. 6.HCF of 152 and 120 =
  7. 7.HCF of 336 and 312 =
  8. 8.HCF of 340 and 221 =
  9. 9.HCF of 24 and 44 =
  10. 10.HCF of 175 and 125 =
  11. 11.HCF of 368 and 161 =
  12. 12.HCF of 12 and 44 =
  13. 13.HCF of 64 and 40 =
  14. 14.HCF of 220 and 300 =
  15. 15.HCF of 16 and 6 =
  16. 16.HCF of 126 and 119 =
  17. 17.HCF of 200 and 190 =
  18. 18.HCF of 30 and 48 =
  19. 19.HCF of 85 and 10 =
  20. 20.HCF of 207 and 368 =
  21. 21.HCF of 400 and 425 =
  22. 22.HCF of 8 and 20 =
  23. 23.HCF of 300 and 340 =
  24. 24.HCF of 119 and 102 =
  25. 25.HCF of 195 and 270 =
  26. 26.HCF of 75 and 200 =
  27. 27.HCF of 221 and 182 =
  28. 28.HCF of 9 and 57 =
  29. 29.HCF of 425 and 175 =
  30. 30.HCF of 361 and 95 =
  31. 31.HCF of 135 and 126 =
  32. 32.HCF of 322 and 253 =
  33. 33.HCF of 171 and 90 =
  34. 34.HCF of 65 and 52 =
  35. 35.HCF of 500 and 75 =
  36. 36.HCF of 70 and 266 =
  37. 37.HCF of 6 and 33 =
  38. 38.HCF of 33 and 57 =
  39. 39.HCF of 68 and 40 =
  40. 40.HCF of 171 and 108 =

Answer key

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

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