markup cpp

// compile with g++ prime.cpp

#include <iostream>
#include <math.h>

int calc_prime(int prime_to_test){     // function to test if the given number is prime or not
     bool prime_flag = true;
     float prim_divide = 0;

     for (int t1 = 2 ; t1 <= sqrt(prime_to_test) ; t1++){
          prim_divide = prime_to_test%t1;

          if (prim_divide == 0 and t1 != prime_to_test){
               prime_flag = false;
               break;
          }
     }

     if (prime_flag == true){
          std::cout << prime_to_test << std::endl;
     }
}

int main(int argc, char *argv[]){
     int max_prime_number = 10000000;

     for (int t2 = 2 ; t2 < max_prime_number ; t2++){
          calc_prime(t2);
     }

     return 0;
}