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