math-prime-factorization.js

var primeFactorization = function primeFactorization(number, result) {
  var result = (result || []);
  var root = Math.sqrt(number);
  var x = 2;

  if (number % x) {
    x = 3;

    while ((number % x) && ((x = (x + 2)) < root)) {}
  }

  x = (x <= root) ? x : number;

  result.push(x);

  return (x === number) ? result : primeFactorization((number / x), result);
};

Math.primeFactorization = primeFactorization;

Thanks! Was looking for this through the web for a long time