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Class 5 Maths Worksheet: Factors and Multiples

Maths worksheets lesson 34: Factors, multiples, HCF and LCM · Set 245 · 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.Which of these is a factor of 36? (a) 34 (b) 21 (c) 9
  2. 2.Which of these is a prime number? (a) 46 (b) 38 (c) 7
  3. 3.How many factors does 6 have?
  4. 4.What is the LCM of 3 and 8?
  5. 5.How many factors does 15 have?
  6. 6.What is the HCF of 12 and 30?
  7. 7.Which of these is a factor of 20? (a) 8 (b) 17 (c) 10
  8. 8.How many factors does 24 have?
  9. 9.What is the LCM of 5 and 14?
  10. 10.Is 5 a factor of 54? (a) No (b) Yes
  11. 11.What is the LCM of 3 and 4?
  12. 12.Which of these is a factor of 60? (a) 20 (b) 11 (c) 53
  13. 13.What is the LCM of 3 and 10?
  14. 14.Which of these is a factor of 24? (a) 10 (b) 13 (c) 3
  15. 15.How many factors does 21 have?
  16. 16.What is the LCM of 5 and 6?
  17. 17.Which of these is a multiple of 3? (a) 14 (b) 16 (c) 9
  18. 18.How many factors does 18 have?
  19. 19.Which of these is a multiple of 12? (a) 94 (b) 93 (c) 48
  20. 20.What is the HCF of 3 and 12?
  21. 21.Is 6 a factor of 54? (a) No (b) Yes
  22. 22.Which of these is a multiple of 7? (a) 21 (b) 59 (c) 38
  23. 23.What is the HCF of 8 and 18?
  24. 24.Is 8 a factor of 98? (a) No (b) Yes
  25. 25.Is 8 a factor of 88? (a) Yes (b) No
  26. 26.Is 3 a factor of 14? (a) Yes (b) No
  27. 27.Which of these is a multiple of 3? (a) 12 (b) 8 (c) 13
  28. 28.How many factors does 20 have?
  29. 29.Which of these is a multiple of 9? (a) 54 (b) 66 (c) 68
  30. 30.What is the LCM of 4 and 15?
  31. 31.What is the LCM of 2 and 5?
  32. 32.Which of these is a prime number? (a) 23 (b) 36 (c) 6
  33. 33.Is 2 a factor of 11? (a) Yes (b) No
  34. 34.What is the HCF of 3 and 21?
  35. 35.Is 9 a factor of 82? (a) Yes (b) No
  36. 36.How many factors does 42 have?
  37. 37.What is the HCF of 9 and 12?
  38. 38.What is the LCM of 9 and 12?
  39. 39.What is the LCM of 2 and 11?
  40. 40.What is the LCM of 7 and 10?

Answer key

  1. 9
  2. 7
  3. 4
  4. 24
  5. 4
  6. 6
  7. 10
  8. 8
  9. 70
  10. No
  11. 12
  12. 20
  13. 30
  14. 3
  15. 4
  16. 30
  17. 9
  18. 6
  19. 48
  20. 3
  21. Yes
  22. 21
  23. 2
  24. No
  25. Yes
  26. No
  27. 12
  28. 6
  29. 54
  30. 60
  31. 10
  32. 23
  33. No
  34. 3
  35. No
  36. 8
  37. 3
  38. 36
  39. 22
  40. 70

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