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