At 1:32:35 on my counter into the move. Rat gives Josh at hidden clue in his message. Rad is an internet genius and should know his math. Josh has a doctorate and it a problem solver. When Josh pulls up the message to decode it. He mentions prime numbers. He starts with the number 1. You don't have to be a genius to know that 1 is not a prime number. I guess when you are a genius its not.