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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 852 · 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 30 and 51 =
  2. 2.HCF of 40 and 112 =
  3. 3.HCF of 120 and 78 =
  4. 4.HCF of 102 and 24 =
  5. 5.HCF of 275 and 375 =
  6. 6.HCF of 39 and 12 =
  7. 7.HCF of 165 and 195 =
  8. 8.HCF of 216 and 456 =
  9. 9.HCF of 6 and 33 =
  10. 10.HCF of 187 and 102 =
  11. 11.HCF of 225 and 50 =
  12. 12.HCF of 105 and 255 =
  13. 13.HCF of 345 and 299 =
  14. 14.HCF of 190 and 20 =
  15. 15.HCF of 49 and 105 =
  16. 16.HCF of 260 and 340 =
  17. 17.HCF of 100 and 175 =
  18. 18.HCF of 98 and 119 =
  19. 19.HCF of 48 and 112 =
  20. 20.HCF of 18 and 153 =
  21. 21.HCF of 119 and 28 =
  22. 22.HCF of 60 and 51 =
  23. 23.HCF of 210 and 224 =
  24. 24.HCF of 133 and 380 =
  25. 25.HCF of 40 and 100 =
  26. 26.HCF of 55 and 60 =
  27. 27.HCF of 28 and 49 =
  28. 28.HCF of 126 and 91 =
  29. 29.HCF of 231 and 105 =
  30. 30.HCF of 169 and 78 =
  31. 31.HCF of 126 and 77 =
  32. 32.HCF of 176 and 374 =
  33. 33.HCF of 20 and 110 =
  34. 34.HCF of 144 and 152 =
  35. 35.HCF of 64 and 52 =
  36. 36.HCF of 182 and 238 =
  37. 37.HCF of 285 and 120 =
  38. 38.HCF of 209 and 76 =
  39. 39.HCF of 374 and 176 =
  40. 40.HCF of 195 and 270 =

Answer key

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

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