Hello wanted ask how do you change these code that so that only prime numbers will be displayed after clicking on the button.
this is a nice task for a homework...
remember...
If you are asking for help, I recommend you to make it as easy for others to be able to help you ...
You probably will get more feedback then...
which means in your case post a screenshot of your relevant blocks...
To download the aia file, upload it to App Inventor, open it, do some bug hunting for you, etc... this takes time, and most people will not do that...
Thank you.
Taifun
Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by 
Taifun.
Just catch tthe result in a label and remove the things that you don't want. But that was perfect code
why you have the same code with this post?
Is this your another id?