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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 291 · 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 160 and 56 =
  2. 2.HCF of 78 and 114 =
  3. 3.HCF of 209 and 266 =
  4. 4.HCF of 240 and 456 =
  5. 5.HCF of 77 and 126 =
  6. 6.HCF of 255 and 272 =
  7. 7.HCF of 247 and 117 =
  8. 8.HCF of 21 and 39 =
  9. 9.HCF of 378 and 231 =
  10. 10.HCF of 70 and 112 =
  11. 11.HCF of 12 and 32 =
  12. 12.HCF of 28 and 6 =
  13. 13.HCF of 135 and 126 =
  14. 14.HCF of 110 and 33 =
  15. 15.HCF of 184 and 207 =
  16. 16.HCF of 304 and 160 =
  17. 17.HCF of 65 and 169 =
  18. 18.HCF of 357 and 168 =
  19. 19.HCF of 70 and 91 =
  20. 20.HCF of 88 and 110 =
  21. 21.HCF of 88 and 66 =
  22. 22.HCF of 104 and 112 =
  23. 23.HCF of 133 and 21 =
  24. 24.HCF of 196 and 154 =
  25. 25.HCF of 209 and 342 =
  26. 26.HCF of 48 and 180 =
  27. 27.HCF of 195 and 169 =
  28. 28.HCF of 170 and 289 =
  29. 29.HCF of 156 and 36 =
  30. 30.HCF of 121 and 33 =
  31. 31.HCF of 342 and 361 =
  32. 32.HCF of 216 and 156 =
  33. 33.HCF of 45 and 70 =
  34. 34.HCF of 22 and 34 =
  35. 35.HCF of 120 and 195 =
  36. 36.HCF of 70 and 84 =
  37. 37.HCF of 28 and 98 =
  38. 38.HCF of 260 and 247 =
  39. 39.HCF of 45 and 285 =
  40. 40.HCF of 66 and 18 =

Answer key

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

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