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Mersen

Free
iPhone / iPad
Genres:
  • Utilities
  • Education
I want this app
Download from AppStore

Mersen is a simple application that allows you to check whether a specific number is prime or not.

It's not limited as to digits, so you can enter a number as large as you want.

You can also scan for primes in a specific range.
If you want, you can get the factors of a number,
of course, without any limitation on the digits.

(and a few more options...)