Mark Rodenkirch


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.)

g238, p95, g319, p117, p137 ... ... p275, L3917, p393, p397, L5342
E-mail address:
Web page:
Username: Rodenkirch (entry created on 05/28/01)
Database id:313 (entry last modified on 05/03/21)
Active primes:on current list: 7.3333 (unweighted total: 8), rank by number 138
Total primes: number ever on any list: 131.833 (unweighted total: 133)
Production score: for current list 48 (normalized: 43), total 48.4270, rank by score 151
Largest prime: 13 · 24998362 + 1 ‏(‎1504659 digits) via code L3917 on 07/15/14
Most recent: 1261 · 988246031 + 1 ‏(‎736807 digits) via code L5342 on 05/02/21
Entrance Rank: mean 484.62 (minimum 35, maximum 1767)

Descriptive Data: (report abuse)

I am the author of MultiSieve, PRPNet, ECMNet, and the mtsieve suite of sieving programs. I also maintain phrot and PFGW.

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