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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 795 · 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 50 =
  2. 2.HCF of 437 and 46 =
  3. 3.HCF of 117 and 221 =
  4. 4.HCF of 64 and 12 =
  5. 5.HCF of 77 and 88 =
  6. 6.HCF of 255 and 136 =
  7. 7.HCF of 24 and 136 =
  8. 8.HCF of 48 and 18 =
  9. 9.HCF of 208 and 48 =
  10. 10.HCF of 91 and 104 =
  11. 11.HCF of 275 and 75 =
  12. 12.HCF of 304 and 128 =
  13. 13.HCF of 144 and 264 =
  14. 14.HCF of 120 and 18 =
  15. 15.HCF of 84 and 144 =
  16. 16.HCF of 121 and 176 =
  17. 17.HCF of 152 and 361 =
  18. 18.HCF of 152 and 96 =
  19. 19.HCF of 195 and 221 =
  20. 20.HCF of 66 and 60 =
  21. 21.HCF of 133 and 21 =
  22. 22.HCF of 12 and 20 =
  23. 23.HCF of 40 and 45 =
  24. 24.HCF of 90 and 255 =
  25. 25.HCF of 135 and 165 =
  26. 26.HCF of 69 and 184 =
  27. 27.HCF of 374 and 176 =
  28. 28.HCF of 36 and 8 =
  29. 29.HCF of 56 and 63 =
  30. 30.HCF of 276 and 115 =
  31. 31.HCF of 50 and 475 =
  32. 32.HCF of 46 and 391 =
  33. 33.HCF of 270 and 234 =
  34. 34.HCF of 456 and 120 =
  35. 35.HCF of 42 and 45 =
  36. 36.HCF of 63 and 91 =
  37. 37.HCF of 30 and 12 =
  38. 38.HCF of 110 and 242 =
  39. 39.HCF of 35 and 15 =
  40. 40.HCF of 63 and 133 =

Answer key

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

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