Update

mtproto.php

@@ -281,6 +281,7 @@ class Session
         $public_key_fingerprint = $ResPQ['server_public_key_fingerprints'][0];
         $pq_bytes = $ResPQ['pq'];
         $pq = new \phpseclib\Math\BigInteger($pq_bytes, 256);
+
         var_dump($this->PrimeModule->primefactors($pq));die;
         var_dump($this->PrimeModule->pollard_brent(15));
         var_dump($this->PrimeModule->primefactors(1724114033281923457));

prime.php

@@ -117,6 +117,7 @@ class PrimeModule
     public function primefactors($n, $sort = false)
     {
         $factors = [];
+        var_dump((int)$n->toString());
         $limit = ((int) (pow($n, 0.5)) + 1);
         foreach ($this->smallprimes as $checker) {
             if (($checker > $limit)) {