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Class 5 Maths Worksheet: Factors and Multiples

Maths worksheets lesson 34: Factors, multiples, HCF and LCM · Set 266 · 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 10 and 12?
  2. 2.Which of these is a multiple of 12? (a) 96 (b) 28 (c) 63
  3. 3.Is 3 a factor of 18? (a) No (b) Yes
  4. 4.How many factors does 16 have?
  5. 5.What is the LCM of 8 and 9?
  6. 6.What is the LCM of 7 and 12?
  7. 7.What is the LCM of 5 and 8?
  8. 8.What is the HCF of 15 and 18?
  9. 9.Which of these is a factor of 42? (a) 7 (b) 19 (c) 15
  10. 10.What is the LCM of 7 and 10?
  11. 11.Which of these is a factor of 20? (a) 3 (b) 14 (c) 2
  12. 12.Which of these is a prime number? (a) 19 (b) 21 (c) 38
  13. 13.Is 2 a factor of 18? (a) No (b) Yes
  14. 14.How many factors does 18 have?
  15. 15.What is the LCM of 5 and 13?
  16. 16.Is 7 a factor of 45? (a) No (b) Yes
  17. 17.Which of these is a factor of 18? (a) 11 (b) 6 (c) 13
  18. 18.Which of these is a multiple of 7? (a) 26 (b) 66 (c) 14
  19. 19.Which of these is a multiple of 3? (a) 13 (b) 15 (c) 23
  20. 20.What is the LCM of 2 and 11?
  21. 21.Which of these is a prime number? (a) 44 (b) 10 (c) 5
  22. 22.What is the LCM of 2 and 15?
  23. 23.What is the HCF of 21 and 56?
  24. 24.Which of these is a prime number? (a) 3 (b) 25 (c) 6
  25. 25.How many factors does 6 have?
  26. 26.Which of these is a multiple of 7? (a) 52 (b) 23 (c) 42
  27. 27.Which of these is a prime number? (a) 6 (b) 9 (c) 17
  28. 28.How many factors does 45 have?
  29. 29.What is the LCM of 2 and 13?
  30. 30.What is the HCF of 6 and 14?
  31. 31.What is the HCF of 16 and 18?
  32. 32.Which of these is a prime number? (a) 8 (b) 29 (c) 46
  33. 33.Which of these is a prime number? (a) 11 (b) 6 (c) 15
  34. 34.What is the LCM of 3 and 8?
  35. 35.What is the HCF of 45 and 72?
  36. 36.How many factors does 42 have?
  37. 37.Which of these is a factor of 12? (a) 10 (b) 8 (c) 3
  38. 38.What is the LCM of 6 and 8?
  39. 39.Which of these is a factor of 30? (a) 28 (b) 13 (c) 2
  40. 40.Which of these is a multiple of 6? (a) 12 (b) 14 (c) 27

Answer key

  1. 60
  2. 96
  3. Yes
  4. 5
  5. 72
  6. 84
  7. 40
  8. 3
  9. 7
  10. 70
  11. 2
  12. 19
  13. Yes
  14. 6
  15. 65
  16. No
  17. 6
  18. 14
  19. 15
  20. 22
  21. 5
  22. 30
  23. 7
  24. 3
  25. 4
  26. 42
  27. 17
  28. 6
  29. 26
  30. 2
  31. 2
  32. 29
  33. 11
  34. 24
  35. 9
  36. 8
  37. 3
  38. 24
  39. 2
  40. 12

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