David Broadhurst


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.)

g187, c4, c8, c19, p44 ... ... p325, c61, c79, c85, c89
E-mail address:
Username: b (entry created on 12/29/99)
Database id:231 (entry last modified on 05/11/21)
Active primes:on current list: 113.7 (unweighted total: 188), rank by number 5
Total primes: number ever on any list: 1358.07 (unweighted total: 1779)
Production score: for current list 47 (normalized: 28), total 48.3144, rank by score 218
Largest prime: 2 · 179294739 + 1 ‏(‎664004 digits) via code g424 on 11/06/11
Most recent: (14665 · 1034110 - 56641)/9999 ‏(‎34111 digits) via code c89 on 03/29/18
Entrance Rank: mean 45100.47 (minimum 39, maximum 103813)

Descriptive Data: (report abuse)
  • Favourite titanic prime: zeta(-673)/zeta(-1)
  • Favourite gigantic prime: zeta(-4305)/zeta(-1)
  • Favourite Gaussian prime: 4 + 11*sqrt(-1)
  • Favourite small positive prime: 137
  • Next favourite small positive prime: sqrt((808^5-627^5)/(808-627))
  • Favourite small negative prime: -163
  • Next favourite small negative prime: -335257649
  • Mandela's palindromic prime
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Surname: Broadhurst (used for alphabetizing and in codes)
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I am David Broadhurst and I would like to
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