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