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Class 5 Maths Worksheet: Factors and Multiples

Maths worksheets lesson 34: Factors, multiples, HCF and LCM · Set 123 · 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 2 and 11?
  2. 2.Which of these is a multiple of 5? (a) 12 (b) 11 (c) 15
  3. 3.Which of these is a multiple of 7? (a) 67 (b) 32 (c) 42
  4. 4.How many factors does 16 have?
  5. 5.What is the LCM of 10 and 12?
  6. 6.How many factors does 45 have?
  7. 7.Which of these is a prime number? (a) 38 (b) 9 (c) 43
  8. 8.How many factors does 6 have?
  9. 9.How many factors does 10 have?
  10. 10.Which of these is a factor of 36? (a) 11 (b) 28 (c) 6
  11. 11.Which of these is a factor of 24? (a) 20 (b) 7 (c) 8
  12. 12.Which of these is a factor of 12? (a) 10 (b) 3 (c) 8
  13. 13.Which of these is a factor of 48? (a) 45 (b) 28 (c) 2
  14. 14.What is the LCM of 5 and 6?
  15. 15.What is the HCF of 10 and 18?
  16. 16.Which of these is a factor of 48? (a) 5 (b) 19 (c) 6
  17. 17.What is the LCM of 2 and 7?
  18. 18.How many factors does 40 have?
  19. 19.What is the LCM of 2 and 9?
  20. 20.Which of these is a prime number? (a) 49 (b) 21 (c) 3
  21. 21.Which of these is a prime number? (a) 50 (b) 42 (c) 2
  22. 22.Which of these is a prime number? (a) 27 (b) 31 (c) 49
  23. 23.What is the HCF of 20 and 35?
  24. 24.Which of these is a multiple of 12? (a) 31 (b) 36 (c) 94
  25. 25.Which of these is a multiple of 9? (a) 34 (b) 72 (c) 75
  26. 26.What is the LCM of 8 and 11?
  27. 27.Which of these is a multiple of 6? (a) 39 (b) 12 (c) 31
  28. 28.Which of these is a prime number? (a) 22 (b) 39 (c) 17
  29. 29.Which of these is a multiple of 5? (a) 43 (b) 30 (c) 27
  30. 30.Is 2 a factor of 6? (a) No (b) Yes
  31. 31.What is the LCM of 3 and 14?
  32. 32.What is the HCF of 20 and 32?
  33. 33.Which of these is a factor of 36? (a) 5 (b) 31 (c) 12
  34. 34.How many factors does 36 have?
  35. 35.What is the HCF of 8 and 10?
  36. 36.Which of these is a prime number? (a) 30 (b) 18 (c) 23
  37. 37.Which of these is a factor of 30? (a) 26 (b) 13 (c) 5
  38. 38.Which of these is a prime number? (a) 19 (b) 48 (c) 6
  39. 39.What is the LCM of 4 and 15?
  40. 40.What is the HCF of 63 and 72?

Answer key

  1. 22
  2. 15
  3. 42
  4. 5
  5. 60
  6. 6
  7. 43
  8. 4
  9. 4
  10. 6
  11. 8
  12. 3
  13. 2
  14. 30
  15. 2
  16. 6
  17. 14
  18. 8
  19. 18
  20. 3
  21. 2
  22. 31
  23. 5
  24. 36
  25. 72
  26. 88
  27. 12
  28. 17
  29. 30
  30. Yes
  31. 42
  32. 4
  33. 12
  34. 9
  35. 2
  36. 23
  37. 5
  38. 19
  39. 60
  40. 9

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