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