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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 			int m,N,I,J,Flag;
  5. 			scanf("%d",&m);
  6. 			Flag=0;
  7. 			if(m>=2){
  8. 				for(N=2;N<=m;N++){
  9. 					I=2;
  10. 					while(I*I<=N){
  11. 						J=N%I;
  12. 						if(J==0){
  13. 							Flag=1;
  14. 						}
  15. 						I=I+1;
  16. 					}
  17. 					if(Flag==0){
  18. 						printf("%d ",N);
  19. 					}
  20. 						Flag=0;
  21. 				}
  22. 			}	
  23. 	return 0;
  24. }
  25.  
Success #stdin #stdout 0s 5308KB
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2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53
https://ideone.com/bfbrrf
language:
C (gcc 8.3)
created:
10 days ago
visibility:
public

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