すごいよ

#include <stdio.h>

#define MAX_NUM 100

int main(void){
int i;
int j;
int count;

for (i = 2; i <= MAX_NUM; i++){

count = 0;

for (j = 1; j <= i; j++){
if (i % j != 0){
count++;
}
}

if (count == i - 2){
printf("%d\n", i);
}

}
return 0;
}