Just to reiterate:
The idea is to guess the lowest number that no one else has guessed. You get 5 picks. They must be in a PM to me. Obviously #1 is going to be popular. Once the #1 is guessed by more than 1 person it becomes a losing number. The person to guess the lowest number(s) and be the only person to guess the number(s) wins.
This is not a "guess which number I'm thinking" type game. It's sort of a "bid the closest to the actual retail price without going over" type thing. You want to guess a low enough number to win but a high enough number that no one else will guess it.