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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int x;
  5. 	scanf("%d",&x);
  6. 	if (x%2==0)
  7. 	{
  8. 		printf("error");
  9. 	}
  10. 	else if (x%5==0)
  11. 	{
  12. 		printf("error");
  13.  
  14. 	}
  15. 	else if (x%3==0)
  16. 	{
  17. 		printf("error");
  18. 	}
  19. 	else if (x%7==0)
  20. 	{
  21. 		printf("error");
  22. 	}
  23. 	else {
  24. 		printf("素数です");
  25. 	}
  26. 	return 0;
  27. }
  28.  
Success #stdin #stdout 0s 5304KB
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素数です
https://ideone.com/DNC3tf
language:
C (gcc 8.3)
created:
13 days ago
visibility:
public

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