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