價格：免費
檔案大小：18 MB
版本需求：需要 iOS 9.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
How good are you at finding prime numbers!
Oddly fun?
Random prime numbers appear in a grid.
Locate them all.
Leaderboards to track score.
Good way to learn and pass the time for a few minutes.
支援平台：iPhone, iPad