Twin Prime Search

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 reflects on the primes currently on the list. (Many of the terms that are used here are explained on another page.)

Proof-code(s):

E-mail address:

michael

(dot)

kwok2

(at)

gmail

(dot)

com

Web page:

http://www.mersenneforum.org/forumdisplay.php?f=65

Username

TPS

(entry created on 1/17/2007 16:15:02 UTC)

Database id:

949

(entry last modified on 10/30/2025 05:13:27 UTC)

Active primes:

on current list: 53, rank by number 6

Total primes:

number ever on any list: 1753.5

Production score:

for current list 50 (normalized: 96), total 50.3562, rank by score 9

Largest prime:

224331639195 · 2^3322000 - 1 ‏(‎1000033 digits) via code A75 on 9/14/2025 01:45:26 UTC

Most recent:

100855907240235 · 2⁴⁸⁰⁴⁷⁹ - 1 ‏(‎144653 digits) via code A79 on 10/23/2025 17:03:20 UTC

Entrance Rank:

mean 14259.70 (minimum 497, maximum 54351)

Descriptive Data: (report abuse)

Twin Prime Search (TPS) is a distributed computing project that searches for large twin primes and large Sophie Germain primes. It was founded on April 13, 2006 by Michael Kwok, and from November 2006 - August 2009, it collaborated with PrimeGrid and found two twin primes that were the largest in the world at the time of discovery.

TPS works on several sub-projects and searches for twins and Sophie Germain primes that range from slightly under 150,000 digits long to slightly over a million digits long. Testing is done through PRPNet, and live stats can be found at: http://noprimeleftbehind.net/tps/

Additional details can be found on the MersenneForum webpage, and new members are always welcome!

I found a prime as a member of this group and I would like to

Create a New Prover-Account If you already have a prover-account, you must use it, you may have only one.
Create a New Proof-Code Remember that all unused codes will be deleted after 24 hours, so do not create a proof-code until you need it.

Surname: TPS (used for alphabetizing and in codes).
Unverified primes are omitted from counts and lists until verification completed.

I administer Twin Prime Search and I would like to