73336 is an amazing self working trick!

With a borrowed deck, the spectator picks 13 random cards and mixes them with up all of the other cards.

The spectator choses 1 of the 13 cards, and it is lost somewhere in the pile of 13 cards. Somehow with the number 73336 you can find exactly what the card was chosen!
 
 
No forces
 
 
No gimmicks
 
 
Easy to do
 
 
Works 100%