(295369 + 1)/3

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.

This prime's information:

Description:(295369 + 1)/3
Verification status (*):PRP
Official Comment (*):Generalized Lucas number, Wagstaff, ECPP
Unofficial Comments:This prime has 1 user comment below.
Proof-code(s): (*):x49 : Facq, Asuncion, Allombert, Unknown
Decimal Digits:28709   (log10 is 28708.452535223)
Rank (*):70911 (digit rank is 1)
Entrance Rank (*):64979
Currently on list? (*):yes
Submitted:8/3/2021 08:07:06 UTC
Last modified:5/20/2023 20:59:19 UTC
Database id:132583
Status Flags:Verify
Score (*):35.7037 (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: yes, rank 12
Subcategory: "Generalized Lucas Number"
(archival tag id 226235, tag last modified 2023-10-24 02:37:13)
Elliptic Curve Primality Proof (archivable *)
Prime on list: no, rank 44
Subcategory: "ECPP"
(archival tag id 226236, tag last modified 2024-12-16 19:37:11)
Wagstaff (archivable *)
Prime on list: yes, rank 4
Subcategory: "Wagstaff"
(archival tag id 226237, tag last modified 2023-10-24 02:37:14)

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.

Jeppe Stig Nielsen writes (7 Dec 2024):  (report abuse)
They put the ECPP certificate on FactorDB.

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_id132583
person_id9
machineUsing: Xeon (pool) 4c+4c 3.5GHz
whatprp
notesCommand: /home/caldwell/clientpool/1/pfgw64 -tc -q"(2^95369+1)/3" 2>&1 PFGW Version 4.0.1.64BIT.20191203.x86_Dev [GWNUM 29.8] Primality testing (2^95369+1)/3 [N-1/N+1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 2 Running N-1 test using base 7 Running N+1 test using discriminant 13, base 1+sqrt(13) Calling N-1 BLS with factored part 0.50% and helper 0.05% (1.56% proof) (2^95369+1)/3 is Fermat and Lucas PRP! (13.3551s+0.0667s) [Elapsed time: 14.00 seconds]
modified2022-07-11 18:21:46
created2021-08-03 08:11:01
id178295

Query times: 0.0003 seconds to select prime, 0.0004 seconds to seek comments.
Printed from the PrimePages <t5k.org> © Reginald McLean.