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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 426 · 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 228 and 323 =
  2. 2.HCF of 70 and 95 =
  3. 3.HCF of 45 and 50 =
  4. 4.HCF of 228 and 144 =
  5. 5.HCF of 35 and 80 =
  6. 6.HCF of 40 and 28 =
  7. 7.HCF of 182 and 84 =
  8. 8.HCF of 198 and 374 =
  9. 9.HCF of 209 and 198 =
  10. 10.HCF of 221 and 117 =
  11. 11.HCF of 50 and 80 =
  12. 12.HCF of 75 and 85 =
  13. 13.HCF of 28 and 44 =
  14. 14.HCF of 285 and 270 =
  15. 15.HCF of 169 and 52 =
  16. 16.HCF of 56 and 40 =
  17. 17.HCF of 52 and 12 =
  18. 18.HCF of 30 and 16 =
  19. 19.HCF of 133 and 91 =
  20. 20.HCF of 133 and 228 =
  21. 21.HCF of 350 and 325 =
  22. 22.HCF of 380 and 360 =
  23. 23.HCF of 22 and 20 =
  24. 24.HCF of 36 and 342 =
  25. 25.HCF of 190 and 120 =
  26. 26.HCF of 126 and 27 =
  27. 27.HCF of 56 and 20 =
  28. 28.HCF of 105 and 98 =
  29. 29.HCF of 85 and 100 =
  30. 30.HCF of 60 and 280 =
  31. 31.HCF of 6 and 28 =
  32. 32.HCF of 247 and 152 =
  33. 33.HCF of 48 and 136 =
  34. 34.HCF of 266 and 247 =
  35. 35.HCF of 425 and 150 =
  36. 36.HCF of 440 and 374 =
  37. 37.HCF of 128 and 120 =
  38. 38.HCF of 384 and 312 =
  39. 39.HCF of 125 and 50 =
  40. 40.HCF of 156 and 108 =

Answer key

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

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