primV(83481)

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:primV(83481)
Verification status (*):PRP
Official Comment (*):Lucas primitive part, ECPP
Proof-code(s): (*):c74 : Lasher, Dubner, Primo
Decimal Digits:11631   (log10 is 11630.396070481)
Rank (*):76508 (digit rank is 1)
Entrance Rank (*):67926
Currently on list? (*):short
Submitted:5/3/2015 20:06:14 CDT
Last modified:5/3/2015 20:20:32 CDT
Database id:119854
Status Flags:Verify, TrialDiv
Score (*):32.9081 (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.
Lucas primitive part (archivable *)
Prime on list: yes, rank 18
Subcategory: "Lucas primitive part"
(archival tag id 218007, tag last modified 2021-02-13 15:20:13)
Elliptic Curve Primality Proof (archivable *)
Prime on list: no, rank 143
Subcategory: "ECPP"
(archival tag id 218008, tag last modified 2021-09-18 09:37:41)

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_id119854
person_id9
machineUsing: Xeon 4c+4c 3.5GHz
whatprp
notesPFGW Version 3.7.7.64BIT.20130722.x86_Dev [GWNUM 27.11] Primality testing 2489261263...3230575061 [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 6+sqrt(13) Calling N-1 BLS with factored part 0.33% and helper 0.05% (1.06% proof) 2489261263...3230575061 is Fermat and Lucas PRP! (10.9882s+0.0719s) [Elapsed time: 11.00 seconds]
modified2020-07-07 17:30:17
created2015-05-03 20:11:02
id165476

Query times: 0.0004 seconds to select prime, 0.0007 seconds to seek comments.
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