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