George Woltman's Prime95


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): p265, p267, p273, p279, p281, p291, p390, L4294, L4506, L4548, L4789, L5109
Active wild codes: ^G\d+
Code prefix:G
E-mail address:
Web page:
Username Prime95 (entry created on 1/18/2000 18:50:53 UTC)
Database id:427 (entry last modified on 6/19/2020 20:59:30 UTC)
Program Does *: special
Active primes:on current list: 54, rank by number 16
Total primes: number ever on any list: 80
Production score: for current list 57 (normalized: 360796), rank by score 1
Largest prime: 282589933 - 1 ‏(‎24862048 digits) via code G16 on 12/21/2018 14:57:42 UTC
Most recent: 6 · 894478421 - 1 ‏(‎1411983 digits) via code L4294 on 11/6/2023 22:05:49 UTC
Entrance Rank: mean 312.67 (minimum 1, maximum 4292)

Descriptive Data: (report abuse)

Prime95 is the key program behind the success of GIMPS. George Woltman created this program in late 1995. Scott Kurowski added client-server enhancements in 1997.

Surname: Prime95 (used for alphabetizing and in codes).
Unverified primes are omitted from counts and lists until verification completed.
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