primecrunch.com

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.)

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Proof-code(s):	L4518, A46, A98, A102
E-mail address:	(e-mail address unpublished)
Web page:	https://primecrunch.com
Username	primecrunch	(entry created on 1/14/2017 20:55:49 UTC)
Database id:	4682	(entry last modified on 10/1/2026 21:03:02 UTC)
Active primes:	on current list: 11, rank by number 11
Total primes:	number ever on any list: 24
Production score:	for current list 49 (normalized: 21), total 49.7132, rank by score 11
Largest prime:	1011 · 2^4702339 - 1 ‏(‎1415549 digits) via code A98 on 7/14/2026 08:05:24 UTC
Most recent:	2027 · 2^3503676 - 1 ‏(‎1054715 digits) via code A102 on 10/1/2026 21:07:09 UTC
Entrance Rank:	mean 1560.64 (minimum 907, maximum 3401)

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primecrunch is a distributed computing project searching for large prime numbers of the form k·2^n-1 (Riesel primes). Volunteers run a lightweight client that downloads chunks of work, tests candidate numbers for primality, and reports results back.

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

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