A titan, as defined by Samuel Yates, is anyone who has found
a titanic prime. This page provides data on those that have found these primes. The data below only reflect on the primes currently on the list. (Many of the terms that are used here are explained on another page.)
g b arnes017 (at) gmail (dot) com
Web page: http://www.mersenneforum.org/forumdisplay.php?f=82
(entry created on 07/20/2003)
Database id: 518
(entry last modified on 12/02/2016)
Active primes: on current list: 156,
rank by number 4
Total primes: number ever on any list: 4013
Production score: for current list 49 (normalized: 285), total 50.5916,
rank by score 8
(780235 digits) via code 333 · 2 2591874 - 1 L2017 on 02/26/2019
(479653 digits) via code 427 · 2 1593361 - 1 L1819 on 04/09/2019
Entrance Rank: mean 1648.86 (minimum 92, maximum 3158)
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The PrimeSearch project was originally created by Michael
Hartley to search for primes of the form k*2^n-1 (Riesel
primes) for k=300-1001 up to n=600K.
In Jan. 2008, the project was expanded by the "No Prime
Left Behind" (NPLB) project at the mersenneforum.org site.
The intent now is to find Riesel primes that have not been
found by others (or otherwise left behind) in a much larger
n-range than the original PrimeSearch project. This
includes mostly top-5000 efforts but from time-to-time can
include non-top-5000 and/or double-check efforts.
New searches are currently being conducted for k=300-1001
for 100's of k's at once and occassional double-checking is
ongoing at lower n-ranges.
Coordinated team drives, automated PRPnet processing, and
well-sieved files already available make finding primes
very quick and easy for both novices and experienced prime
searchers alike. Sieved files are also available for those
who like to search their own k's or who like to search for
primes offline in a less-automated fashion.
I administer No Prime Left Behind (formerly: PrimeSearch) and I would like to
Surname: NPLB (used for alphabetizing and in codes)
Unverified primes are omitted from counts and lists until verification completed.