I love this app. But I wish it had a way to change the sound to a click. More retro that way.
Just like the primer on Numberphile Its just like it and free!
Brilliant. Loads of fun trying to anticipate the next prime with the kids
Hahahaha very entertaining
Yup, them's prime numbers!
Android Marshmallow support
Prime Factorization app converts the given number into product of prime numbers