PrimeXTime app for iPhone and iPad
4.8 (
1168 ratings )
Games
Developer: Rick Hutchinson
Free
Current version: 1.7.1, last update: 1 year agoFirst release : 07 Jul 2017
App size: 8.31 Mb
Kill some time and give your brain a little exercise at the same time with this simple game. You start with a random number and then start dividing by single-digit primes (2, 3, 5 or 7). When you cant do any more divisions you bump the number -- multiplying by 10 and adding any single digit. You win the game by reducing the original number to 1.