kbadk

"use strict";

function primeSieve(max) {
  var sieve = [], primes = [];
  for (var i = 2; i <= max; ++i) {
    if (!sieve[i]) {
      primes.push(i);
      for (var j = i << 1; j <= max; j += i) {
        sieve[j] = true;
      }