prime!

12 for Android

4.8 | 5,000+ Installs | Reviews

Jesús Gallinal

Download APK（285.0KB） Previous Versions

Description of prime!

9Apps supports free android apps apk download. 20,000+ users downloaded prime! latest version on 9Apps for free every week! Many latest version apps provided on 9Apps too. This hot app was released on 2017-11-16. You can free download it from 9Apps.
prime! 9.0 computes prime factorization of integers as large as you want
Minimum requirements: Android 2.3.x and up

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• 
  A Google user

  This app is very fast, even for 100-digit numbers. It factors 2^346+1 almost instantly. It's the best app for finding prime factors. I would suggest omitting '1' from the prime factors of a number, since 1 is a unit, not a prime, but that's a very minor annoyance. Edit: I just realized that I accidentally gave this app only 1 star. Sorry! I meant 5 stars, and would give it 6 if I could.

  2020-01-26 10:34
• 
  Paul GdL

  Unbeatable. Close to the fast number factorisers you can find online in terms of speed (thinking of factordb or Number Empire, to be completely transparent), but I'm having a hard time understanding how the algorithm works. On the one hand probable primes less than 10^60 are confirmed prime almost immediately, even the 126-digit 1111...1109 took only about 2.5 seconds, but on the other hand the first time I tried the 34-digit 5777...7773 it wasn't able to factorise it? Seems unpredictable

  2019-11-01 08:02
• 
  RUSHIKESH A. Bangar

  I loved it, it's excellent, it's outstanding, and many more things to say.

  2014-10-14 12:12
• 
  Eduardo Ramos

  Nobody had never offered anything like that, so light and compact.

  2014-05-08 09:48