Prime numbers...
Hate 'em. They make me go all itchy. Can't have the car radio volume (or any other digital thingy)set to a prime. No idea why.
Also have to feel all the switches and controls in my flat to ensure they are off before I go to work. Just seeing they are off isn't good enough. It takes ages, but I can't leave till it's done.
(grumpypolecat, Thu 15 Dec 2011, 18:35, 2 replies)

You do know
That 1 is a prime number, and that therefore all switches with a 0/1 marking must be switched to a prime number in order to work? Your computer has one, on the back. All digital electronics works on 0 and 1. The numbers are all around you.
( MatJ LOOK, Sun 18 Dec 2011, 22:24, closed)

Why is it useful to know what a prime number is?
I have no idea which are which so I can avoid this particular idiosyncracy.

Thank cheese.
(AndyC4m Eject Eject [><], Tue 20 Dec 2011, 10:51, closed)