Hi all,
Prime95 version 17.1 is now available. As usual, go to
http://www.mersenne.org/freesoft.htm to download it. The whatsnew.txt
file is included below.
The first new features is the ability to use ECM factoring on numbers
of the form 2^N+1. See http://www.mersenne.org/ecm.htm for exponents
that need work (be sure to download lowp.txt). Of special interest are
three Fermat numbers: F14 = 2^16384+1 has no known factors, and F12 and
F13 are the smallest Fermat numbers that are not completely factored.
The 2^N+1 factorer is not quite as fast the 2^N-1 factorer and
only supports power-of-two FFT run lengths.
The second new feature is the ability to run prime95 with
different options at different times of the day (such as a priority
above a screen saver at night). You can also have prime95 sleep
during some hours of the day.
Barring any bug reports, ports to other platforms will occur next week.
Happy hunting,
George
1) The -T command line switch has been deleted.
2) You can now fine tune your control of the program by adding Time=
lines to your prime.ini file - see the readme.txt file.
3) ECM factoring for 2^N+1 is now available.
4) By default, ECM factoring stops if a factor is found for exponents
above 5825 and continues (if the cofactor is composite) for exponents
below 5825. You can override this behavior by setting ContinueECM=0
or 1 in prime.ini.
