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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 463 · 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 95 and 90 =
  2. 2.HCF of 63 and 171 =
  3. 3.HCF of 260 and 221 =
  4. 4.HCF of 114 and 96 =
  5. 5.HCF of 342 and 162 =
  6. 6.HCF of 38 and 133 =
  7. 7.HCF of 16 and 76 =
  8. 8.HCF of 171 and 81 =
  9. 9.HCF of 176 and 272 =
  10. 10.HCF of 21 and 6 =
  11. 11.HCF of 70 and 84 =
  12. 12.HCF of 104 and 120 =
  13. 13.HCF of 143 and 26 =
  14. 14.HCF of 475 and 150 =
  15. 15.HCF of 110 and 418 =
  16. 16.HCF of 108 and 24 =
  17. 17.HCF of 68 and 56 =
  18. 18.HCF of 144 and 117 =
  19. 19.HCF of 125 and 100 =
  20. 20.HCF of 63 and 105 =
  21. 21.HCF of 228 and 240 =
  22. 22.HCF of 168 and 266 =
  23. 23.HCF of 170 and 190 =
  24. 24.HCF of 162 and 234 =
  25. 25.HCF of 92 and 115 =
  26. 26.HCF of 175 and 50 =
  27. 27.HCF of 21 and 91 =
  28. 28.HCF of 66 and 154 =
  29. 29.HCF of 228 and 108 =
  30. 30.HCF of 57 and 247 =
  31. 31.HCF of 198 and 90 =
  32. 32.HCF of 33 and 24 =
  33. 33.HCF of 440 and 66 =
  34. 34.HCF of 72 and 60 =
  35. 35.HCF of 49 and 112 =
  36. 36.HCF of 153 and 18 =
  37. 37.HCF of 12 and 56 =
  38. 38.HCF of 63 and 45 =
  39. 39.HCF of 75 and 250 =
  40. 40.HCF of 70 and 84 =

Answer key

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

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