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Class 5 Maths Worksheet: Factors and Multiples

Maths worksheets lesson 34: Factors, multiples, HCF and LCM · Set 300 · 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.What is the LCM of 6 and 14?
  2. 2.Which of these is a prime number? (a) 36 (b) 18 (c) 17
  3. 3.What is the HCF of 3 and 15?
  4. 4.What is the HCF of 45 and 54?
  5. 5.Which of these is a factor of 24? (a) 18 (b) 7 (c) 6
  6. 6.Which of these is a prime number? (a) 14 (b) 41 (c) 34
  7. 7.What is the HCF of 3 and 27?
  8. 8.Which of these is a factor of 42? (a) 17 (b) 2 (c) 38
  9. 9.Which of these is a multiple of 5? (a) 16 (b) 25 (c) 21
  10. 10.How many factors does 30 have?
  11. 11.What is the LCM of 4 and 5?
  12. 12.Which of these is a prime number? (a) 37 (b) 8 (c) 20
  13. 13.Which of these is a multiple of 10? (a) 30 (b) 39 (c) 57
  14. 14.Which of these is a prime number? (a) 9 (b) 2 (c) 35
  15. 15.What is the HCF of 20 and 32?
  16. 16.Which of these is a factor of 40? (a) 20 (b) 38 (c) 28
  17. 17.What is the HCF of 28 and 36?
  18. 18.Which of these is a prime number? (a) 22 (b) 18 (c) 7
  19. 19.Which of these is a factor of 20? (a) 12 (b) 3 (c) 10
  20. 20.Which of these is a factor of 40? (a) 17 (b) 10 (c) 26
  21. 21.Which of these is a factor of 30? (a) 4 (b) 9 (c) 3
  22. 22.What is the LCM of 6 and 10?
  23. 23.What is the HCF of 5 and 20?
  24. 24.Which of these is a factor of 36? (a) 6 (b) 23 (c) 24
  25. 25.What is the HCF of 36 and 42?
  26. 26.What is the LCM of 4 and 9?
  27. 27.How many factors does 40 have?
  28. 28.Which of these is a multiple of 4? (a) 24 (b) 14 (c) 9
  29. 29.What is the LCM of 4 and 7?
  30. 30.Which of these is a multiple of 8? (a) 41 (b) 34 (c) 32
  31. 31.What is the LCM of 5 and 13?
  32. 32.Which of these is a factor of 30? (a) 10 (b) 20 (c) 14
  33. 33.Which of these is a multiple of 8? (a) 25 (b) 16 (c) 61
  34. 34.Which of these is a factor of 18? (a) 15 (b) 14 (c) 6
  35. 35.Which of these is a multiple of 12? (a) 48 (b) 25 (c) 67
  36. 36.Which of these is a multiple of 7? (a) 31 (b) 61 (c) 28
  37. 37.What is the LCM of 2 and 5?
  38. 38.How many factors does 21 have?
  39. 39.Which of these is a factor of 18? (a) 14 (b) 12 (c) 9
  40. 40.What is the LCM of 8 and 10?

Answer key

  1. 42
  2. 17
  3. 3
  4. 9
  5. 6
  6. 41
  7. 3
  8. 2
  9. 25
  10. 8
  11. 20
  12. 37
  13. 30
  14. 2
  15. 4
  16. 20
  17. 4
  18. 7
  19. 10
  20. 10
  21. 3
  22. 30
  23. 5
  24. 6
  25. 6
  26. 36
  27. 8
  28. 24
  29. 28
  30. 32
  31. 65
  32. 10
  33. 16
  34. 6
  35. 48
  36. 28
  37. 10
  38. 4
  39. 9
  40. 40

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