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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int i,x=4,s=0;
  5. 	for(i=x;i>1;i--){
  6. 		s+=x/i;
  7. 	}
  8. 	if(s==0) {
  9. 		printf("%dは素数である\n",x);
  10. 	}
  11. 	else {
  12. 		printf("%dは素数ではない\n",x);
  13. 	}
  14. 	return 0;
  15. }
  16.  
Success #stdin #stdout 0.01s 5320KB
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Standard input is empty
stdout
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4は素数ではない
https://ideone.com/qjEo0d
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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