Actually hiding the listbox can list out the numbers much more faster.
Find prime numbers inside a range as you like. You can click start or the green flag to start. Click pause to stop. Related project: https://scratch.mit.edu/projects/3128927 (prime) https://scratch.mit.edu/projects/3140631 (n prime numbers) https://scratch.mit.edu/projects/3140640 (prime numbers under n, this project) https://scratch.mit.edu/projects/3140677 (the nth prime) https://scratch.mit.edu/projects/3140766 (prime and composite) https://scratch.mit.edu/projects/3140746 (quiz game)
