Answer to Question 14B-2

  int numPrimes(const int n)
  {
    if(n < 2)
    {
      return 0;
    }
    else 
    {
      int m = numPrimes(n-1);
      if(isPrime(n))
      {
        return m;
      }
      else
      {
        return m + 1;
      }
    }
  }