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Jan 21st, 2019
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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4.  
  5. void testePrimal(int n);
  6.  
  7. int main(void)
  8. {
  9. int i;
  10.  
  11. for(i = 1; i < 100; i++) // Números primos entre 1 e 100.
  12. {
  13. testePrimal(i);
  14. }
  15.  
  16. return 0;
  17. }
  18.  
  19. void testePrimal(int n)
  20. {
  21. float raiz = sqrt(n);
  22. float numPrec = (float)n;
  23. int i;
  24.  
  25. for(i = 2; i <= raiz; i++)
  26. {
  27. float modulo = fmodf(numPrec, i);
  28.  
  29. if(modulo == 0)
  30. {
  31. return;
  32. }
  33. }
  34.  
  35. printf("%d e Primo!\n", n);
  36. }
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