fork(1) download
  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int m,i,k;
  5. k=m-1;
  6. scanf("%d",&m);
  7. for(i=2;i<m;i++)
  8. {
  9. if(m%i==0)break;}
  10. if(i==m)
  11. printf("%d is\n",m);
  12. else
  13. printf("%d is not\n",m);
  14.  
  15. return 0;
  16. }
  17.  
Success #stdin #stdout 0s 5332KB
stdin
13
stdout
13 is