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