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): L466, x37, p229, p266, p269, p298, p339, CH9, x44
E-mail address: (e-mail address unpublished)
Web page: http://bitc.bme.emory.edu/~lzhou
(entry created on 10/10/2007)
Database id: 1273
(entry last modified on 01/06/2017)
Active primes: on current list: 16 (unweighted total: 16),
rank by number 53
Total primes: number ever on any list: 217.333 (unweighted total: 218)
Production score: for current list 48 (normalized: 84), total 48.4675,
rank by score 78
(1000000 digits) via code 464253 · 2 3321908 - 1 L466 on 03/15/2013
(541056 digits) via code 3 1134000 + 3 360654 + 1 x44 on 10/16/2017
Entrance Rank: mean 1123.38 (minimum 29, maximum 3465)
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Finding "SHORT" non k*m^n+/-1 primes...
My personal prime blog goes HERE
Day 0001: Caught my first prime in Top 5000 on
Day 0218: Entered Top 20 prover list for number of
primes on 05/14/2008.
Day 0443: Caught biggest
Woodall Prime 229918*12^229918-1 on 12/25/2008 -- my
best Christmas Present ever! The record last to
Day 0526: Got 100 primes on the top 5000 list on
Day 0769: First time ranked No. 10 in top 20 prover
list for number of primes on 11/16/2009, with 125 primes
on top 5000 list.
Day 0889: Found a Generalized Woodall with n=b+1 on
03/16/2010. The full known list is
Day 0911: High water mark on number of primes on list
- 154, 04/07/2010.
Day 0934: Constructed a 160115 digits prime number
from a group of k*2^n+1 primes. Detail please see
Day 1023: Historically bottom of Top 5000 is above
2^2^19. number of primes dropped to below 100.
Day 1220: Caught the one over M37 on 02/10/2011.
Day 1436: Caught the 10th prime greater than 300k
digits and my 200th prime ever on the list on 09/14/2011.
Day 1570: Caught a prime that used another prime I
caught previously in this list as helper on 01/23/2012 -
the Lunar New Year Day of 2012. It took me two days to
generate the proof using Open PFGW - best new year
Day 1987: Caught an exactly 1 million digits prime
number - 464253*2^3321908-1.
Day 2056: Caught another exactly 1 million digits
prime number - 191273*2^3321908-1.
July 04 2014: 94259^(2*3^10)+94259^(3^10)+1 is a
587458 digits prime.
July 17 2016: First CHG proven prime:
3^850500+3^248918-1, largest up-to-date by CHG method.
I am Lei Zhou and I would like to
Surname: Zhou (used for alphabetizing and in codes)
Unverified primes are omitted from counts and lists until verification completed.