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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 598 · 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 48 and 104 =
  2. 2.HCF of 162 and 117 =
  3. 3.HCF of 80 and 15 =
  4. 4.HCF of 133 and 76 =
  5. 5.HCF of 170 and 70 =
  6. 6.HCF of 120 and 380 =
  7. 7.HCF of 165 and 154 =
  8. 8.HCF of 150 and 110 =
  9. 9.HCF of 357 and 210 =
  10. 10.HCF of 169 and 65 =
  11. 11.HCF of 138 and 115 =
  12. 12.HCF of 182 and 169 =
  13. 13.HCF of 418 and 88 =
  14. 14.HCF of 357 and 189 =
  15. 15.HCF of 16 and 36 =
  16. 16.HCF of 168 and 432 =
  17. 17.HCF of 28 and 77 =
  18. 18.HCF of 153 and 34 =
  19. 19.HCF of 78 and 30 =
  20. 20.HCF of 65 and 90 =
  21. 21.HCF of 38 and 323 =
  22. 22.HCF of 169 and 104 =
  23. 23.HCF of 98 and 91 =
  24. 24.HCF of 143 and 117 =
  25. 25.HCF of 26 and 22 =
  26. 26.HCF of 264 and 144 =
  27. 27.HCF of 189 and 336 =
  28. 28.HCF of 150 and 110 =
  29. 29.HCF of 38 and 36 =
  30. 30.HCF of 180 and 96 =
  31. 31.HCF of 45 and 21 =
  32. 32.HCF of 104 and 48 =
  33. 33.HCF of 6 and 10 =
  34. 34.HCF of 210 and 285 =
  35. 35.HCF of 80 and 304 =
  36. 36.HCF of 20 and 48 =
  37. 37.HCF of 24 and 10 =
  38. 38.HCF of 45 and 144 =
  39. 39.HCF of 117 and 45 =
  40. 40.HCF of 273 and 357 =

Answer key

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

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