1973 · 23946 - 1

At this site we maintain a list of the 5000 Largest Known Primes which is updated hourly. This list is the most important PrimePages database: a collection of research, records and results all about prime numbers. This page summarizes our information about one of these primes.

Description:1973 · 23946 - 1
Verification status (*):Proven
Official Comment (*):Generalized Woodall
Proof-code(s): (*):g2 : Lifchitz, Proth.exe
Decimal Digits:1192   (log10 is 1191.1594899753)
Rank (*):113281 (digit rank is 40)
Entrance Rank (*):25423
Currently on list? (*):no
Submitted:7/3/1998 08:17:40 CDT
Last modified:7/3/1998 08:17:40 CDT
Database id:47591
Status Flags:none
Score (*):25.8191 (normalized score 0)

Archival tags:

There are certain forms classed as archivable: these prime may (at times) remain on this list even if they do not make the Top 5000 proper.  Such primes are tracked with archival tags.
Generalized Woodall (archivable *)
Prime on list: no, rank 340
Subcategory: "Generalized Woodall"
(archival tag id 186985, tag last modified 2019-11-26 12:20:12)

Verification data:

The Top 5000 Primes is a list for proven primes only. In order to maintain the integrity of this list, we seek to verify the primality of all submissions.  We are currently unable to check all proofs (ECPP, KP, ...), but we will at least trial divide and PRP check every entry before it is included in the list.
machineLinux PII 200
notesPFGW Version 1.1 for Pentium and compatibles Running N+1 test using discriminant 3, base 1+sqrt(3) Primality testing 1973*2^3946-1 [N+1, Brillhart-Lehmer-Selfridge] Calling Brillhart-Lehmer-Selfridge with factored part 99.75% 1973*2^3946-1 is prime! (3.520000 seconds)
modified2003-03-25 11:26:43
created2002-12-06 13:08:01

Query times: 0.0005 seconds to select prime, 0.0008 seconds to seek comments.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.