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Jul 26th, 2017
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  1. #include<stdio.h>
  2.  
  3. int main()
  4. {
  5. int k = 0, x , y = 0;
  6.  
  7. printf("Entrez un nombre entier plus grand que 0: ");
  8. scanf("%d" , &k);
  9.  
  10. for (x = 1; x * x <= k && y == 0; x++)
  11. {
  12. if(k == 1)
  13. {
  14. y = 1;
  15. }
  16. if(!(k % x))
  17. {
  18. y = 1;
  19. }
  20. }
  21.  
  22. if (y == 1)
  23. {
  24. printf("%d n'est pas premier.\n" , k);
  25. }
  26. else
  27. printf("%d est premier.\n" ,k);
  28.  
  29. return 0;
  30. }
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