(210501 + 1)/3
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At this site we maintain a list of the 5000 Largest Known Primes which is updated hourly. This list is the most important databases at The Prime Pages: a collection of research, records and results all about prime numbers. This page summarizes our information about one of these primes.

This prime's information:

field (help)value
Description:(210501 + 1)/3
Verification status (*):PRP
Official Comment:Generalized Lucas number, Wagstaff
Unofficial Comments:This prime has 1 user comment below.
Proof-code(s): (*):M : Morain
Decimal Digits:3161   (log10 is 3160.63886321275)
Rank (*):85025 (digit rank is 2)
Entrance Rank (*):2677
Currently on list? (*):short
Submitted:5/1/1996
Last modified:11/26/2005 17:52:07 CDT
Database id:29287
Status Flags:Verify
Score (*):28.8629 (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 Lucas Number (archivable *)
Prime on list: no, rank 94
Subcategory: "Generalized Lucas Number"
(archival tag id 181338, tag last modified 2016-05-02 05:50:25)
Wagstaff (archivable *)
Prime on list: yes, rank 7
Subcategory: "Wagstaff"
(archival tag id 181339, tag last modified 2014-09-17 12:50:33)

User comments about this prime (disclaimer):

User comments are allowed to convey mathematical information about this number, how it was proven prime.... See our guidelines and restrictions.

Chris Caldwell writes (11 Sep 2014): 
notes

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.
fieldvalue
prime_id29287
person_id9
machineLinux PII 200
whatprp
notesPFGW Version 20020311.x86_Dev (Alpha software, 'caveat utilitor') Running N-1 test using base 2 Primality testing (2^10501+1)/3 [N-1/N+1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 3 Running N-1 test using base 7 Running N+1 test using discriminant 17, base 1+sqrt(17) Calling N-1 BLS with factored part 6.04% and helper 0.02% (18.15% proof) (2^10501+1)/3 is Fermat and Lucas PRP! (196.610000 seconds)
modified2003-03-25 11:22:57
created2003-01-04 16:56:25
id61943

Query times: 0.0004 seconds to select prime, 0.0005 seconds to seek comments.