Just go through the instructions that the cat tells you, thanks. If you don't want to use turbo mode it is going to take very long. Enjoy!
Prime numbers are numbers that can only dived by themselves and 1, and the outcome is a round number (e.g. 2 or 7, not 17,5). E.g. 13, is only able to dived itself by itself (13) and by 1.
