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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 737 · 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 42 and 280 =
  2. 2.HCF of 209 and 152 =
  3. 3.HCF of 18 and 16 =
  4. 4.HCF of 76 and 285 =
  5. 5.HCF of 18 and 12 =
  6. 6.HCF of 234 and 144 =
  7. 7.HCF of 126 and 306 =
  8. 8.HCF of 168 and 264 =
  9. 9.HCF of 15 and 95 =
  10. 10.HCF of 84 and 144 =
  11. 11.HCF of 208 and 117 =
  12. 12.HCF of 192 and 80 =
  13. 13.HCF of 30 and 26 =
  14. 14.HCF of 208 and 64 =
  15. 15.HCF of 240 and 340 =
  16. 16.HCF of 45 and 42 =
  17. 17.HCF of 100 and 40 =
  18. 18.HCF of 24 and 10 =
  19. 19.HCF of 342 and 247 =
  20. 20.HCF of 36 and 32 =
  21. 21.HCF of 190 and 30 =
  22. 22.HCF of 77 and 91 =
  23. 23.HCF of 30 and 105 =
  24. 24.HCF of 170 and 110 =
  25. 25.HCF of 48 and 320 =
  26. 26.HCF of 112 and 119 =
  27. 27.HCF of 160 and 340 =
  28. 28.HCF of 65 and 91 =
  29. 29.HCF of 432 and 456 =
  30. 30.HCF of 126 and 133 =
  31. 31.HCF of 391 and 46 =
  32. 32.HCF of 168 and 231 =
  33. 33.HCF of 240 and 75 =
  34. 34.HCF of 128 and 24 =
  35. 35.HCF of 40 and 24 =
  36. 36.HCF of 84 and 72 =
  37. 37.HCF of 48 and 102 =
  38. 38.HCF of 228 and 361 =
  39. 39.HCF of 32 and 20 =
  40. 40.HCF of 456 and 240 =

Answer key

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

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