C++ while statement Prints numbers raised to fourth power

#include <iostream>
#include <iomanip>               //for setw
using namespace std;
int main()//from w ww  .j av a  2  s . c  o  m
{
   int pow=1;                    //power initially 1
   int numb=1;                   //numb goes from 1 to ???
   while( pow<10000 )            //loop while power <= 4 digits
   {
      cout << setw(2) << numb;         //display number
      cout << setw(5) << pow << endl;  //display fourth power
      ++numb;                          //get ready for next power
      pow = numb*numb*numb*numb;       //calculate fourth power
   }
   cout << endl;
   return 0;
}