David Broadhurst
(Another of the Prime Pages' resources)
The Largest Known Primes Icon
  View this page in:   language help
GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

person 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.)
User supplied image--mail editor to report abuse.

g187, c4, c8, c19, p44 ... ... p325, c61, c79, c85, c89
E-mail address:
Web page:http://physics.open.ac.uk/~dbroadhu/tt.htm
Username: b (entry created on 12/29/1999)
Database id:231 (entry last modified on 04/09/2018)
Active primes:on current list: 141.533 (unweighted total: 221), rank by number 7
Total primes: number ever on any list: 1358.07 (unweighted total: 1779)
Production score: for current list 47 (normalized: 43), total 48.3144, rank by score 152
Largest prime: 2 · 179294739 + 1 ‏(‎664004 digits) via code g424 on 11/06/2011
Most recent: (14665 · 1034110 - 56641)/9999 ‏(‎34111 digits) via code c89 on 03/29/2018
Entrance Rank: mean 45480.46 (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

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