Robert L. Clark

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):

g12, L3972, L5606, L5626

E-mail address:

rlclark3

(at)

gmail

(dot)

com

Username

Clark

(entry created on 1/18/2000 18:50:53 UTC)

Database id:

(entry last modified on 10/7/2024 03:19:25 UTC)

Active primes:

on current list: 11 (unweighted total: 11), rank by number 80

Total primes:

number ever on any list: 106 (unweighted total: 106)

Production score:

for current list 49 (normalized: 32), total 49.5172, rank by score 169

Largest prime:

384450036¹³¹⁰⁷² + 1 ‏(‎1125233 digits) via code L5606 on 1/1/2026 15:33:27 UTC

Most recent:

384450036¹³¹⁰⁷² + 1 ‏(‎1125233 digits) via code L5606 on 1/1/2026 15:33:27 UTC

Entrance Rank:

mean 961.09 (minimum 665, maximum 1261)

Descriptive Data: (report abuse)

Robert Clark has been searching for primes since 1967, and still loving it. He is a retired software engineer, father, writer, birder, choral singer, Viola da Gamba player, amateur astronomer, and bon vivant.

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

I am Robert L. Clark and I would like to

(Reuse an old code if your are using the same programs, projects... Only create a new code if you are doing something differently than in the past. Duplicate codes will be merged.