Chris Caldwell


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): C, CD, g1, p8, c7, p72, x34, L1854
E-mail address:
Web page:
Username Caldwell (entry created on 1/18/2000 18:50:53 UTC)
Database id:9 (entry last modified on 10/28/2022 18:38:49 UTC)
Active primes:on current list: 9.5 (unweighted total: 12), rank by number 98
Total primes: number ever on any list: 335 (unweighted total: 354)
Production score: for current list 36 (normalized: 0), total 44.1315, rank by score 1036
Largest prime: Phi(5, (3668 · 16001# - 1) · (378266 · 16001#/5 + 1)7) ‏(‎221071 digits) via code x34 on 10/1/2008 14:45:28 UTC
Most recent: 6345 · 2575747 + 1 ‏(‎173321 digits) via code L1854 on 11/12/2010 14:35:44 UTC
Entrance Rank: mean 301.42 (minimum 28, maximum 1304)

Descriptive Data: (report abuse)

Chris K. Caldwell was born over a half-century ago, received his Ph.D. from UC Berkeley in algebraic number theory and now is the father of five, a professor at the University of Tennessee at Martin, and the author of the PrimePages.

Surname: Caldwell (used for alphabetizing and in codes).
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