Have you ever wanted to know what the 1,000th prime number was? Then this is the app for you. It can help you find any of the first 100,000,000 primes, test the primality of numbers less than or equal to 2,100,000,000, and find the closest prime number to any number less than or equal to 2,100,000,000.
Android 2.3.3 (and later) via Google Play
Android 2.3.3 (and later) via Amazon App Store
Windows 10 (and future versions of Windows) via Windows Store