This is a prime number checker. First line is a remix from TADC. Just enter a number. Z will decrease by one. If you have a 14-digit number or higher, you should actually see Z decrease instead of it happening within one second. There is no error message, so don't try anything other than a positive number, please. Also, commas make the number instantly composite for some reason. Shift-click flag to set to Turbo Mode. Updates: Works faster when given composite number than before and now has timer!
Thanks to my oldest brother for helping me figure out the logic, code, flow chart, and etc. Thanks to Glitch & Gooseworx for the shrimp NPC's line: Hello there! As the shrimp NPC... Six projects!!