This is the Linux app named EMsieve to run in Linux online whose latest release can be downloaded as EM26_results.zip. It can be run online in the free hosting provider OnWorks for workstations.
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EMsieve to run in Linux online
DESCRIPTION
A simple sieve/prefactor program for the so-called Eisenstein-Mersenne Primes: 3^p +- 3^((p + 1)/2) + 1. See http://oeis.org/A125738, A125739 and [1] for a good introduction. Some easily established properties are: p must be prime; sign is minus for p=+-1 (mod 12), plus otherwise; composites only have factors of form 6kp+1 (integer k).Related probable primes (3^p -+ 3^((p + 1)/2) + 1)/7 are sieved at the same time. See http://oeis.org/A125743, A125744.
After sieving, the Berrizbeitia-Iskra or a Proth test can be run; this is best implemented with FFT mod (3^3p+1) using GWNUM library. A sample implementation (a patch to the LLR program) is available from Batalov.
[1] P.Berrizbeitia B.Iskra, 2010; http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.189.311
[2] OEIS: http://oeis.org/
Audience
Science/Research
Programming Language
Assembly, C
This is an application that can also be fetched from https://sourceforge.net/projects/emsieve/. It has been hosted in OnWorks in order to be run online in an easiest way from one of our free Operative Systems.
