Michael Kwok


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): g264, L177, L3121, L4166
E-mail address:
Web page:http://www.flickr.com/photos/michael-kwok
Username Kwok (entry created on 6/28/2003 19:07:22 CDT)
Database id:505 (entry last modified on 2/22/2022 16:00:52 CDT)
Active primes:on current list: 11 (unweighted total: 11), rank by number 82
Total primes: number ever on any list: 22 (unweighted total: 22)
Production score: for current list 47 (normalized: 11), total 47.1444, rank by score 391
Largest prime: 342924651 · 23394939 - 1 ‏(‎1021988 digits) via code L4166 on 12/21/2017 11:00:38 CDT
Most recent: 12566577633 · 2211088 - 1 ‏(‎63554 digits) via code L4166 on 2/22/2022 22:22:20 CDT
Entrance Rank: mean 36212.82 (minimum 242, maximum 52208)

Descriptive Data: (report abuse)

Hi! I'm a number crunching enthusiast who started the Twin Prime Search project in 2006 to search for the largest known twin primes. In 2018, I used y-cruncher to set a world record for calculating the most digits (600,000,000,000) of the natural logarithm of 2 (0.693147...). My other hobbies include traveling, landscape photography, and random adventures like climbing mountains and jumping out of planes (check out my flickr page!). I'm also an avid sprinter and runner; my best times are 11.98 in the 100 meters and 4:57.77 in the mile.

Surname: Kwok (used for alphabetizing and in codes).
Unverified primes are omitted from counts and lists until verification completed.
I am Michael Kwok and I would like to
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