The Prime Pages: David Underbakke

David Underbakke
(Another of the Prime Pages' resources)

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 reflect on the primes currently on the list. (Many of the terms that are used here are explained on another page.)

Proof-code(s):

g144, x22, g205, g216, p53, p57, x35, p100, g294, g295, p101, g359, L99, p222, p259, g429

E-mail address:

david9

(at)

underbakke

(dot)

com

Username:

Underbakke

(entry created on 06/06/2000)

Database id:

260

(entry last modified on 02/05/2013)

Active primes:

on current list: 18 (unweighted total: 19), rank by number 55

Total primes:

number ever on any list: 3198.83 (unweighted total: 3728)

Production score:

for current list 46 (normalized: 45), total 46.9021, rank by score 97

Largest prime:

689186¹³¹⁰⁷² + 1 ‏(‎765243 digits) via code g429 on 02/05/2013

Most recent:

689186¹³¹⁰⁷² + 1 ‏(‎765243 digits) via code g429 on 02/05/2013

Entrance Rank:

mean 10262.37 (minimum 6, maximum 43207)

Descriptive Data: (report abuse)

David is independent software developer from Minnesota, USA. One of his hobbies includes writing the sieving (AthGfn64) and probability testing software (GenefX64) used in his searches. Proth or PFGW are only used in the final proof/double check for probable primes found.

I am David Underbakke and I would like to

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Submit primes using the proof-code: (a password will be required)
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Surname: Underbakke (used for alphabetizing and in codes)
Unverified primes are omitted from counts and lists until verification completed.