0x0ACE d34dc0d3 Solver

// ==UserScript==
// @name         0x0ACE d34dc0d3 solver
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to solve the code at http://5.9.247.121/d34dc0d3
// @author       /u/axlc
// @match        http://5.9.247.121/d34dc0d3
// @grant        none
// @require      http://code.jquery.com/jquery-3.2.0.min.js
// @require      http://cdnjs.cloudflare.com/ajax/libs/mathjs/3.10.0/math.min.js
// ==/UserScript==


var nums = $('.challenge').text();
var textArray = nums.split(',');
var lower = parseInt(textArray[0].substring(2));
var upper = parseInt(textArray[2].substring(0, textArray[2].length - 1));

var primes = new Array();

for (var i = lower + 2; i < upper - 2; i+=2) {
    if (math.isPrime(i)) {
        primes.push(i);
    }
}

//$('body').append("<br><br><pre>Primes: " + primes + "</pre>");

$('input[name=solution]').val(primes);
$('input[type=submit]').click();