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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 615 · 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 91 and 56 =
  2. 2.HCF of 35 and 91 =
  3. 3.HCF of 99 and 187 =
  4. 4.HCF of 110 and 130 =
  5. 5.HCF of 192 and 156 =
  6. 6.HCF of 126 and 27 =
  7. 7.HCF of 72 and 63 =
  8. 8.HCF of 6 and 34 =
  9. 9.HCF of 90 and 170 =
  10. 10.HCF of 152 and 209 =
  11. 11.HCF of 400 and 75 =
  12. 12.HCF of 34 and 6 =
  13. 13.HCF of 39 and 6 =
  14. 14.HCF of 65 and 52 =
  15. 15.HCF of 63 and 56 =
  16. 16.HCF of 44 and 20 =
  17. 17.HCF of 231 and 357 =
  18. 18.HCF of 24 and 76 =
  19. 19.HCF of 72 and 90 =
  20. 20.HCF of 105 and 135 =
  21. 21.HCF of 299 and 92 =
  22. 22.HCF of 75 and 325 =
  23. 23.HCF of 16 and 52 =
  24. 24.HCF of 95 and 50 =
  25. 25.HCF of 15 and 51 =
  26. 26.HCF of 6 and 57 =
  27. 27.HCF of 42 and 315 =
  28. 28.HCF of 266 and 98 =
  29. 29.HCF of 380 and 247 =
  30. 30.HCF of 108 and 192 =
  31. 31.HCF of 6 and 34 =
  32. 32.HCF of 266 and 168 =
  33. 33.HCF of 204 and 60 =
  34. 34.HCF of 35 and 90 =
  35. 35.HCF of 112 and 136 =
  36. 36.HCF of 420 and 189 =
  37. 37.HCF of 136 and 323 =
  38. 38.HCF of 108 and 66 =
  39. 39.HCF of 440 and 242 =
  40. 40.HCF of 168 and 48 =

Answer key

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

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