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Class 5 Maths Worksheet: Factors and Multiples

Maths worksheets lesson 34: Factors, multiples, HCF and LCM · Set 195 · 40 sums
TalentJR

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) 21 (b) 8 (c) 41
  2. 2.Which of these is a factor of 24? (a) 20 (b) 9 (c) 12
  3. 3.Which of these is a prime number? (a) 47 (b) 21 (c) 39
  4. 4.Which of these is a prime number? (a) 22 (b) 37 (c) 16
  5. 5.Which of these is a factor of 18? (a) 4 (b) 9 (c) 15
  6. 6.Which of these is a multiple of 3? (a) 6 (b) 7
  7. 7.Is 2 a factor of 15? (a) Yes (b) No
  8. 8.What is the LCM of 7 and 8?
  9. 9.Is 5 a factor of 41? (a) Yes (b) No
  10. 10.Which of these is a factor of 20? (a) 7 (b) 4 (c) 15
  11. 11.Which of these is a factor of 42? (a) 34 (b) 14 (c) 15
  12. 12.How many factors does 32 have?
  13. 13.How many factors does 45 have?
  14. 14.Is 7 a factor of 21? (a) No (b) Yes
  15. 15.Which of these is a prime number? (a) 9 (b) 13 (c) 48
  16. 16.How many factors does 21 have?
  17. 17.How many factors does 18 have?
  18. 18.How many factors does 24 have?
  19. 19.What is the LCM of 7 and 9?
  20. 20.What is the HCF of 40 and 72?
  21. 21.What is the LCM of 2 and 15?
  22. 22.Is 5 a factor of 36? (a) No (b) Yes
  23. 23.How many factors does 12 have?
  24. 24.What is the HCF of 2 and 8?
  25. 25.Which of these is a factor of 20? (a) 10 (b) 11 (c) 14
  26. 26.Which of these is a multiple of 3? (a) 23 (b) 24 (c) 28
  27. 27.How many factors does 6 have?
  28. 28.Which of these is a factor of 30? (a) 4 (b) 7 (c) 6
  29. 29.Which of these is a multiple of 12? (a) 72 (b) 32 (c) 117
  30. 30.What is the LCM of 4 and 7?
  31. 31.Which of these is a prime number? (a) 19 (b) 10 (c) 15
  32. 32.How many factors does 30 have?
  33. 33.Which of these is a prime number? (a) 39 (b) 42 (c) 2
  34. 34.What is the HCF of 8 and 64?
  35. 35.How many factors does 15 have?
  36. 36.Which of these is a factor of 12? (a) 8 (b) 9 (c) 2
  37. 37.What is the LCM of 5 and 12?
  38. 38.What is the LCM of 10 and 15?
  39. 39.How many factors does 20 have?
  40. 40.How many factors does 28 have?

Answer key

  1. 41
  2. 12
  3. 47
  4. 37
  5. 9
  6. 6
  7. No
  8. 56
  9. No
  10. 4
  11. 14
  12. 6
  13. 6
  14. Yes
  15. 13
  16. 4
  17. 6
  18. 8
  19. 63
  20. 8
  21. 30
  22. No
  23. 6
  24. 2
  25. 10
  26. 24
  27. 4
  28. 6
  29. 72
  30. 28
  31. 19
  32. 8
  33. 2
  34. 8
  35. 4
  36. 2
  37. 60
  38. 30
  39. 6
  40. 6

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