Oh nice I've built a program like that before lol the problem is that python starts to round at bigger numbers.
Two prime numbers multiplied together is called a semiprime I didn't see that anywhere in here but I could have missed it. I also found a few grammatical errors, if you have somebody look it over and edit it before you post it goes a long way. (I have two people do that with every one of my posts lol)
Upvoted and followed I hope to see what other stuff you post in the future!