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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 161 · 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 60 and 320 =
  2. 2.HCF of 56 and 119 =
  3. 3.HCF of 15 and 36 =
  4. 4.HCF of 9 and 39 =
  5. 5.HCF of 60 and 24 =
  6. 6.HCF of 72 and 90 =
  7. 7.HCF of 63 and 84 =
  8. 8.HCF of 78 and 221 =
  9. 9.HCF of 56 and 64 =
  10. 10.HCF of 136 and 96 =
  11. 11.HCF of 175 and 125 =
  12. 12.HCF of 9 and 42 =
  13. 13.HCF of 56 and 160 =
  14. 14.HCF of 114 and 72 =
  15. 15.HCF of 110 and 50 =
  16. 16.HCF of 30 and 24 =
  17. 17.HCF of 92 and 161 =
  18. 18.HCF of 340 and 260 =
  19. 19.HCF of 140 and 190 =
  20. 20.HCF of 340 and 187 =
  21. 21.HCF of 114 and 95 =
  22. 22.HCF of 228 and 247 =
  23. 23.HCF of 42 and 399 =
  24. 24.HCF of 35 and 40 =
  25. 25.HCF of 102 and 90 =
  26. 26.HCF of 391 and 253 =
  27. 27.HCF of 102 and 54 =
  28. 28.HCF of 260 and 220 =
  29. 29.HCF of 42 and 51 =
  30. 30.HCF of 12 and 57 =
  31. 31.HCF of 425 and 100 =
  32. 32.HCF of 128 and 48 =
  33. 33.HCF of 56 and 12 =
  34. 34.HCF of 39 and 52 =
  35. 35.HCF of 4 and 14 =
  36. 36.HCF of 49 and 42 =
  37. 37.HCF of 16 and 26 =
  38. 38.HCF of 144 and 128 =
  39. 39.HCF of 44 and 28 =
  40. 40.HCF of 77 and 63 =

Answer key

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

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