Download the Program and sieved data

For Windows 95, 98, Me, NT, 2000, XP,

Download the latest version of Proth.exe at The prime Pages site and a prefiltered file on Phil Carmody's site.

For Linux,

Download the latest version of Proth.exe at The prime Pages site and a prefiltered file on Phil Carmody's site and Wine . Proth is as fast under Linux/Wine as under Windows and the 188,194 digit prime 553602³²⁷⁶⁸+1 was found this way.

NEW: you can download the binary of GeneFer. It's written in assembler and is as fast as Proth.exe on a PIII. A full 80-bit version of GeneFer is also available for Linux and Windows.. If you use pre-sieved numbers, it's today the fastest program for the search for a +100,000 or +500,000 digit prime!

For Unix and other OS,

Download the C source code of "GeneFer". The probable test of GFN is implemented: a DWT and a Four Step FFT with no transposition and no bit reversal are used to test quickly large numbers. A test and a bench is included in.

The most up-to-date algorithm for GFN sieving

is available here. But you don't need it if you use already a prefiltered file.

Benchmarks,

You can compare your computer to other architectures here.