Mat's Prime Search
(Another of the Prime Pages' resources)
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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): p142, g363, p139, p143, p145, p148, p156, p166
E-mail address: (e-mail address unpublished)
Web page:
Username: MatGFN (entry created on 07/05/2004)
Database id:662 (entry last modified on 07/16/2017)
Active primes:on current list: 2, rank by number 21
Total primes: number ever on any list: 24.5
Production score: for current list 45 (normalized: 3), total 45.3576, rank by score 20
Largest prime: 5 · 21777515 + 1 ‏(‎535087 digits) via code p148 on 04/14/2005
Most recent: 5 · 21777515 + 1 ‏(‎535087 digits) via code p148 on 04/14/2005
Entrance Rank: mean 20.00 (minimum 19, maximum 21)

Descriptive Data: (report abuse)
This project is composed of one or more projects in Japanese.

Primes found by 47*2^n+1 Search:
9*2^834810+1 Senji Yamashita (Sep 22, 2004)
9*2^1051026+1 Souichi Murata (Dec 15, 2004)
7*2^1491852+1 Syoichiro Yamada (Mar 2, 2005)
5*2^1777515+1 Senji Yamashita (Apr 15, 2005)

We cooperate on the board which is managed by Mat.
Mat provides some contents on webpage how to search primes in Japanese.

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