Free-DC's Prime Search
(Another of the Prime Pages' resources)
The Largest Known Primes Icon
  View this page in:   language help
GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

project 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.)

Proof-code(s): L860, L862, L864, L874, L876, L893, L900, L1112, L1133, p264, L1973, L2022, L2247, L2377
E-mail address: (e-mail address unpublished)
Username: FreeDCPrimeSearc (entry created on 05/23/2009)
Database id:1820 (entry last modified on 08/13/2014)
Active primes:on current list: 20, rank by number 7
Total primes: number ever on any list: 1307
Production score: for current list 47 (normalized: 23), total 49.1326, rank by score 15
Largest prime: 3423 · 21555994 - 1 ‏(‎468405 digits) via code L860 on 02/14/2017
Most recent: 7473 · 21497216 - 1 ‏(‎450711 digits) via code L860 on 04/13/2017
Entrance Rank: mean 2123.05 (minimum 132, maximum 2523)

Descriptive Data: (report abuse)
Free-DC's Prime Search This is a project to search for prime numbers of the form k*2^n-1 (better known as Riesel Primes) to find many Top 5000 prime numbers. The primary goal is to find as many Top 5000 primes as possible in a given range of k and eventually finding mega-digit primes. Our main effort will begin testing in a range just above the lower bound of the Top 5000 Prime level and moving to higher levels as we proceed. A secondary effort will be launched soon that will work on low Nash weight k's for large primes to get into mega-digit level quickly. Our main effort is currently testing all k's in the 3401 to 3999 range, 6001 to 6999 range and 7001 to 7999 range (other than those k's reserved by others) Our website can be found at [broken link removed by editor].

I administer Free-DC's Prime Search and I would like to
Edit this page
Surname: FreeDCPrimeSearch (used for alphabetizing and in codes)
Unverified primes are omitted from counts and lists until verification completed.