When the project loads, type "prime()" (without quote marks) and then type a number.
Download the original Python code: https://1drv.ms/u/s!AukXm7_3LKdQwkjCIKA3XiyJjzjS This wouldn't be possible if this wiki page didn't exist: https://en.scratch-wiki.info/wiki/Checking_for_Integers
