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Fermat's Last Theorem

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According to Fermat’s Last Theorem, no three positive integers a, b, c satisfy the equation, a^n + b^n = c^n for any integer value of n greater than 2. For n = 1 and n = 2, the equation have infinitely many solutions.


function fermat_last(limit, n)
{
  if(n < 3) return;
  for(var a = 1; a <= limit; a++)
    for(b = a; b <= limit; b++)
    {
        var pow_sum = parseInt(power(a, n)) + parseInt(power(b, n));
        var c = parseInt(power(pow_sum, parseInt(1.0/n)));
        var c_pow = parseInt(power(c, n));
        if(c_pow === pow_sum)
        {
            return "Count example found";
        }
    }
    return "No counter example within given range and data";
}