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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int i,j;
  5. for(i=2;i<=100;++i){
  6.    int fact=1;
  7.    int isq=i*i;
  8.    for(j=2;j<i;++j){
  9. 	fact=(fact*j)%isq;
  10.         if(!fact) break;
  11.    }
  12.    if(fact) printf("%d\n", i);
  13. }
  14. return 0;
  15. }
  16.  
Success #stdin #stdout 0s 2248KB
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https://ideone.com/zfsd3o
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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