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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 822 · 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 154 and 88 =
  2. 2.HCF of 85 and 45 =
  3. 3.HCF of 456 and 96 =
  4. 4.HCF of 10 and 26 =
  5. 5.HCF of 15 and 12 =
  6. 6.HCF of 437 and 345 =
  7. 7.HCF of 198 and 44 =
  8. 8.HCF of 312 and 240 =
  9. 9.HCF of 42 and 30 =
  10. 10.HCF of 22 and 24 =
  11. 11.HCF of 187 and 77 =
  12. 12.HCF of 374 and 176 =
  13. 13.HCF of 64 and 240 =
  14. 14.HCF of 56 and 182 =
  15. 15.HCF of 52 and 65 =
  16. 16.HCF of 44 and 8 =
  17. 17.HCF of 34 and 8 =
  18. 18.HCF of 119 and 35 =
  19. 19.HCF of 32 and 28 =
  20. 20.HCF of 15 and 57 =
  21. 21.HCF of 60 and 156 =
  22. 22.HCF of 63 and 49 =
  23. 23.HCF of 437 and 276 =
  24. 24.HCF of 162 and 306 =
  25. 25.HCF of 36 and 54 =
  26. 26.HCF of 66 and 55 =
  27. 27.HCF of 65 and 60 =
  28. 28.HCF of 180 and 285 =
  29. 29.HCF of 105 and 42 =
  30. 30.HCF of 16 and 68 =
  31. 31.HCF of 360 and 408 =
  32. 32.HCF of 152 and 48 =
  33. 33.HCF of 272 and 304 =
  34. 34.HCF of 176 and 256 =
  35. 35.HCF of 187 and 119 =
  36. 36.HCF of 63 and 273 =
  37. 37.HCF of 230 and 391 =
  38. 38.HCF of 15 and 48 =
  39. 39.HCF of 198 and 342 =
  40. 40.HCF of 104 and 91 =

Answer key

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

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