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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 318 · 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 325 and 150 =
  2. 2.HCF of 180 and 190 =
  3. 3.HCF of 288 and 90 =
  4. 4.HCF of 54 and 126 =
  5. 5.HCF of 357 and 294 =
  6. 6.HCF of 69 and 230 =
  7. 7.HCF of 408 and 168 =
  8. 8.HCF of 33 and 55 =
  9. 9.HCF of 46 and 299 =
  10. 10.HCF of 72 and 66 =
  11. 11.HCF of 72 and 162 =
  12. 12.HCF of 323 and 76 =
  13. 13.HCF of 140 and 320 =
  14. 14.HCF of 195 and 30 =
  15. 15.HCF of 238 and 289 =
  16. 16.HCF of 250 and 275 =
  17. 17.HCF of 6 and 21 =
  18. 18.HCF of 456 and 312 =
  19. 19.HCF of 168 and 60 =
  20. 20.HCF of 352 and 374 =
  21. 21.HCF of 300 and 325 =
  22. 22.HCF of 72 and 20 =
  23. 23.HCF of 336 and 105 =
  24. 24.HCF of 153 and 34 =
  25. 25.HCF of 55 and 121 =
  26. 26.HCF of 91 and 63 =
  27. 27.HCF of 70 and 133 =
  28. 28.HCF of 182 and 247 =
  29. 29.HCF of 324 and 306 =
  30. 30.HCF of 312 and 336 =
  31. 31.HCF of 361 and 114 =
  32. 32.HCF of 40 and 48 =
  33. 33.HCF of 150 and 160 =
  34. 34.HCF of 153 and 126 =
  35. 35.HCF of 187 and 55 =
  36. 36.HCF of 40 and 90 =
  37. 37.HCF of 64 and 76 =
  38. 38.HCF of 242 and 44 =
  39. 39.HCF of 368 and 207 =
  40. 40.HCF of 34 and 12 =

Answer key

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

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