David Underbakke's AthGFNSieve
(Another of the Prime Pages' resources)
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program 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):
g244, g289, g295, g296, g297 ... ... L4672, L4673, L4677, L4678, L4679
E-mail address:
david9(at)underbakke(dot)com
Web page:http://www.underbakke.com/AthGFNsv
Username: AthGFNSieve (entry created on 01/03/2003)
Database id:439 (entry last modified on 10/06/2017)
Program Does *: sieve
Active primes:on current list: 329, rank by number 6
Total primes: number ever on any list: 1254
Production score: for current list 52 (normalized: 9042), total 52.8513, rank by score 8
Largest prime: 9194441048576 + 1 ‏(‎6253210 digits) via code L4286 on 09/02/2017
Most recent: 2598718665536 + 1 ‏(‎485934 digits) via code L4679 on 10/06/2017
Entrance Rank: mean 1394.40 (minimum 6, maximum 2210)

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AthGFNSv and the 64 bit program AthGfn64 are programs to rapidly presieve Generalized Fermat candidates removing composite numbers. AthGFNSv supports trial division for small ranges and both programs support wide mode true sieve for larger ranges. The 64 bit version is 60%-80% faster.

They can be found at http://www.underbakke.com/AthGFNSv

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