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