Can someone show me what these positions mean?

Position = Vector3.new(math.random(-20, 20), 20, math.random(-25, 25))
    PlayersInGame = game.Players:GetChildren()
    for i = 1, #PlayersInGame do
    PlayersInGame[i].Character:MoveTo(TeleportLocation + Position) 
    end

What positions are -20,20,20,-25 and 25?