Primality Tester

Test any number for primality with a single click. It uses a deterministic test and uses the Sieve of Eratophenes Logic. Described on The Math Forum @ Drexel. Recommended for Middle School, High School and College, ages 6+. Small application window allows simultaneous use with Word, Outlook, Excel, etc.. Minimizes to tray and pops up when clicked to test for primality. Audio confirmation; beeps high if prime and beeps low if has factors. 99cents only. Educational discount: 20%.