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