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