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Class 5 Maths Worksheet: Factors and Multiples

Maths worksheets lesson 34: Factors, multiples, HCF and LCM · Set 100 · 40 sums
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The method (List and match): Factor: divides with no remainder. Multiple: appears in the table. HCF: list the factors of both numbers; take the biggest one they share. LCM: list the multiples of the bigger number; take the first one the smaller number also divides. Prime: exactly 2 factors (2, 3, 5, 7, 11 …). 1 is not prime.

NameDateTime takenScore ___ / 40
  1. 1.What is the LCM of 3 and 10?
  2. 2.Which of these is a prime number? (a) 28 (b) 38 (c) 23
  3. 3.Which of these is a factor of 36? (a) 6 (b) 30 (c) 26
  4. 4.Is 6 a factor of 55? (a) Yes (b) No
  5. 5.Which of these is a multiple of 5? (a) 18 (b) 17 (c) 25
  6. 6.What is the HCF of 14 and 16?
  7. 7.What is the LCM of 5 and 14?
  8. 8.What is the HCF of 12 and 16?
  9. 9.How many factors does 45 have?
  10. 10.What is the HCF of 24 and 40?
  11. 11.What is the LCM of 8 and 10?
  12. 12.How many factors does 8 have?
  13. 13.Is 3 a factor of 12? (a) Yes (b) No
  14. 14.Which of these is a factor of 48? (a) 39 (b) 8 (c) 17
  15. 15.What is the HCF of 18 and 45?
  16. 16.What is the HCF of 4 and 8?
  17. 17.Which of these is a prime number? (a) 34 (b) 18 (c) 13
  18. 18.Which of these is a multiple of 8? (a) 42 (b) 62 (c) 48
  19. 19.What is the LCM of 7 and 12?
  20. 20.Which of these is a factor of 48? (a) 23 (b) 26 (c) 16
  21. 21.What is the HCF of 2 and 18?
  22. 22.Which of these is a multiple of 5? (a) 44 (b) 45 (c) 24
  23. 23.What is the LCM of 2 and 13?
  24. 24.What is the LCM of 6 and 13?
  25. 25.Which of these is a multiple of 3? (a) 9 (b) 13 (c) 22
  26. 26.What is the HCF of 9 and 12?
  27. 27.Which of these is a factor of 20? (a) 12 (b) 7 (c) 4
  28. 28.Is 3 a factor of 28? (a) Yes (b) No
  29. 29.Which of these is a prime number? (a) 25 (b) 47 (c) 45
  30. 30.Which of these is a prime number? (a) 15 (b) 10 (c) 7
  31. 31.Is 5 a factor of 40? (a) No (b) Yes
  32. 32.Which of these is a factor of 30? (a) 22 (b) 15 (c) 13
  33. 33.What is the HCF of 8 and 12?
  34. 34.Which of these is a factor of 30? (a) 18 (b) 10 (c) 21
  35. 35.Which of these is a factor of 18? (a) 11 (b) 4 (c) 3
  36. 36.Which of these is a multiple of 3? (a) 25 (b) 14 (c) 6
  37. 37.What is the HCF of 40 and 45?
  38. 38.Which of these is a factor of 18? (a) 15 (b) 12 (c) 9
  39. 39.Which of these is a factor of 42? (a) 9 (b) 21 (c) 8
  40. 40.Which of these is a factor of 12? (a) 4 (b) 5 (c) 9

Answer key

  1. 30
  2. 23
  3. 6
  4. No
  5. 25
  6. 2
  7. 70
  8. 4
  9. 6
  10. 8
  11. 40
  12. 4
  13. Yes
  14. 8
  15. 9
  16. 4
  17. 13
  18. 48
  19. 84
  20. 16
  21. 2
  22. 45
  23. 26
  24. 78
  25. 9
  26. 3
  27. 4
  28. No
  29. 47
  30. 7
  31. Yes
  32. 15
  33. 4
  34. 10
  35. 3
  36. 6
  37. 5
  38. 9
  39. 21
  40. 4

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