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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 866 · 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 60 and 48 =
  2. 2.HCF of 240 and 84 =
  3. 3.HCF of 196 and 70 =
  4. 4.HCF of 184 and 69 =
  5. 5.HCF of 48 and 68 =
  6. 6.HCF of 308 and 110 =
  7. 7.HCF of 42 and 60 =
  8. 8.HCF of 10 and 26 =
  9. 9.HCF of 100 and 30 =
  10. 10.HCF of 475 and 50 =
  11. 11.HCF of 75 and 350 =
  12. 12.HCF of 36 and 102 =
  13. 13.HCF of 98 and 280 =
  14. 14.HCF of 26 and 4 =
  15. 15.HCF of 207 and 230 =
  16. 16.HCF of 14 and 40 =
  17. 17.HCF of 143 and 195 =
  18. 18.HCF of 42 and 57 =
  19. 19.HCF of 456 and 384 =
  20. 20.HCF of 105 and 285 =
  21. 21.HCF of 85 and 25 =
  22. 22.HCF of 64 and 12 =
  23. 23.HCF of 266 and 238 =
  24. 24.HCF of 36 and 240 =
  25. 25.HCF of 156 and 221 =
  26. 26.HCF of 306 and 288 =
  27. 27.HCF of 45 and 40 =
  28. 28.HCF of 150 and 110 =
  29. 29.HCF of 28 and 21 =
  30. 30.HCF of 228 and 323 =
  31. 31.HCF of 28 and 30 =
  32. 32.HCF of 260 and 140 =
  33. 33.HCF of 30 and 78 =
  34. 34.HCF of 54 and 342 =
  35. 35.HCF of 21 and 28 =
  36. 36.HCF of 208 and 80 =
  37. 37.HCF of 135 and 18 =
  38. 38.HCF of 42 and 133 =
  39. 39.HCF of 125 and 75 =
  40. 40.HCF of 110 and 140 =

Answer key

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

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