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