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Primo e composito Worksheet

Recommended for 4° grado — 6° grado

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Primo e composito Worksheet

Nome: ____________________Date: ____________

Instructions: Identificazione dei numeri primi e compositi e scrittura delle fattorizzazioni prime.

20 problems

  1. Prime numbers in {11, 15, 23, 7, 12, 5} → ______
  2. Prime numbers in {5, 2, 15, 11, 7, 9} → ______
  3. Prime numbers in {9, 17, 19, 27, 23, 21} → ______
  4. Prime numbers in {13, 27, 25, 11, 9, 21} → ______
  5. Prime numbers in {19, 27, 17, 3, 12, 23} → ______
  6. Prime numbers in {21, 9, 8, 23, 2, 17} → ______
  7. Prime numbers in {11, 7, 23, 25, 15, 27} → ______
  8. Prime numbers in {13, 15, 27, 29, 3, 21} → ______
  9. Prime numbers in {29, 23, 19, 7, 11, 5} → ______
  10. Prime numbers in {2, 21, 29, 7, 17, 23} → ______
  11. Prime numbers in {2, 13, 25, 12, 21, 8} → ______
  12. Prime numbers in {27, 25, 5, 29, 11, 12} → ______
  13. Prime numbers in {21, 19, 7, 11, 25, 2} → ______
  14. Prime numbers in {11, 12, 27, 25, 7, 15} → ______
  15. Prime numbers in {5, 27, 29, 13, 8, 15} → ______
  16. Prime numbers in {9, 27, 12, 13, 11, 7} → ______
  17. Prime numbers in {27, 11, 8, 23, 2, 25} → ______
  18. Prime numbers in {12, 25, 13, 8, 29, 27} → ______
  19. Prime numbers in {23, 29, 17, 2, 25, 11} → ______
  20. Prime numbers in {12, 29, 3, 5, 11, 9} → ______