David Metcalfe


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): L136, L139, L169, L171, L261, L268, L434, L1959, L3196, c59, c64, c71, L4641
E-mail address:
Web page:http://www.amphoria.uk/primes/
Username Amphoria (entry created on 10/22/2005 03:40:03 CDT)
Database id:816 (entry last modified on 6/16/2017 04:13:00 CDT)
Active primes:on current list: 82 (unweighted total: 84), rank by number 13
Total primes: number ever on any list: 1118 (unweighted total: 1120)
Production score: for current list 49 (normalized: 155), total 50.3753, rank by score 70
Largest prime: 49 · 24365175 - 1 ‏(‎1314051 digits) via code L1959 on 9/18/2017 04:40:52 CDT
Most recent: 135 · 22180256 - 1 ‏(‎656325 digits) via code L1959 on 7/9/2019 02:20:22 CDT
Entrance Rank: mean 6568.93 (minimum 60, maximum 63078)

Surname: Metcalfe (used for alphabetizing and in codes).
Unverified primes are omitted from counts and lists until verification completed.
I am David Metcalfe and I would like to
Edit this page

Submit primes using the proof-code: (a password will be required)

(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.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.