Thread: extreme frustration with vectors

Ok, I've tried just about everything with this tiny program I wrote, and at this point I'm nearly certain that it's failing to work simply for no reason. The point of the program is to output a certain prime number; if you type 100 and press enter, it outputs the 100th prime number. I'm not trying to find the most efficient way to handle prime numbers, i'm just doing it as an excersize in vectors, and failing miserably. Help, Please.

Code:

#include <cstdlib>
#include <iostream>
#include <vector>

using namespace std;

int main(int argc, char *argv[])
{
    vector <int> primes;
    primes.push_back(2);  // declaring the first couple of prime numbers
    primes.push_back(3);
    int quantity;
    bool primestatus = true;
    cin >> quantity;
    int x = 2;
    
    
    while (primes.size() < quantity) {
          x++;
          
          
    if ((x % 2) != 0) { // eliminate all even numbers right off the bat
           
       for (int n = 0; n < (primes.size());n++) {
           
           if ((x % primes[n]) == 0) {
                 primestatus = false; 
                 break;
                 // if the number is divisible by any previous primes,
                 // then it's not prime
                          }
                 }
           }
         else {
              primestatus = false; // even numbers get knocked out from above
               }
          if (primestatus == true) {
          primes.push_back(x);
          }
          }
    cout << primes[quantity] << endl;
    system("PAUSE");
    return EXIT_SUCCESS;
}