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Class 5 Maths Worksheet: Factors and Multiples

Maths worksheets lesson 34: Factors, multiples, HCF and LCM · Set 241 · 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 prime number? (a) 49 (b) 44 (c) 23
  2. 2.What is the LCM of 9 and 15?
  3. 3.Which of these is a factor of 48? (a) 6 (b) 43 (c) 23
  4. 4.Which of these is a factor of 20? (a) 10 (b) 6 (c) 7
  5. 5.What is the HCF of 40 and 48?
  6. 6.Which of these is a prime number? (a) 20 (b) 16 (c) 41
  7. 7.What is the HCF of 5 and 10?
  8. 8.Which of these is a multiple of 9? (a) 45 (b) 53 (c) 20
  9. 9.Which of these is a factor of 60? (a) 19 (b) 10 (c) 45
  10. 10.How many factors does 20 have?
  11. 11.How many factors does 32 have?
  12. 12.What is the LCM of 7 and 8?
  13. 13.Which of these is a factor of 36? (a) 2 (b) 25 (c) 19
  14. 14.What is the LCM of 3 and 8?
  15. 15.Which of these is a factor of 42? (a) 25 (b) 14 (c) 30
  16. 16.What is the LCM of 4 and 6?
  17. 17.Which of these is a factor of 40? (a) 34 (b) 2 (c) 19
  18. 18.Which of these is a multiple of 9? (a) 52 (b) 18 (c) 32
  19. 19.What is the HCF of 15 and 25?
  20. 20.What is the HCF of 25 and 30?
  21. 21.What is the LCM of 2 and 9?
  22. 22.Which of these is a factor of 12? (a) 7 (b) 9 (c) 2
  23. 23.How many factors does 40 have?
  24. 24.What is the LCM of 8 and 14?
  25. 25.Which of these is a multiple of 9? (a) 72 (b) 32 (c) 59
  26. 26.Which of these is a prime number? (a) 32 (b) 24 (c) 5
  27. 27.How many factors does 48 have?
  28. 28.Which of these is a factor of 24? (a) 3 (b) 22 (c) 20
  29. 29.What is the HCF of 14 and 21?
  30. 30.Which of these is a multiple of 8? (a) 32 (b) 71 (c) 55
  31. 31.Which of these is a factor of 42? (a) 2 (b) 12 (c) 29
  32. 32.What is the HCF of 72 and 81?
  33. 33.How many factors does 30 have?
  34. 34.Is 3 a factor of 14? (a) No (b) Yes
  35. 35.Is 2 a factor of 13? (a) Yes (b) No
  36. 36.What is the HCF of 30 and 54?
  37. 37.How many factors does 42 have?
  38. 38.What is the LCM of 7 and 10?
  39. 39.Which of these is a prime number? (a) 50 (b) 16 (c) 3
  40. 40.How many factors does 18 have?

Answer key

  1. 23
  2. 45
  3. 6
  4. 10
  5. 8
  6. 41
  7. 5
  8. 45
  9. 10
  10. 6
  11. 6
  12. 56
  13. 2
  14. 24
  15. 14
  16. 12
  17. 2
  18. 18
  19. 5
  20. 5
  21. 18
  22. 2
  23. 8
  24. 56
  25. 72
  26. 5
  27. 10
  28. 3
  29. 7
  30. 32
  31. 2
  32. 9
  33. 8
  34. No
  35. No
  36. 6
  37. 8
  38. 70
  39. 3
  40. 6

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