
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:  V(81671) 
Verification status (*):  PRP 
Official Comment:  Lucas number, ECPP 
Unofficial Comments:  This prime has 1 user comment below. 
Proofcode(s): (*):  c66 : Steine, Primo 
Decimal Digits:  17069 (log_{10} is 17068.229566856) 
Rank (*):  67950 (digit rank is 2) 
Entrance Rank (*):  58117 
Currently on list? (*):  short 
Submitted:  9/7/2013 17:16:02 CDT 
Last modified:  9/9/2013 15:20:45 CDT 
Database id:  115420 
Status Flags:  Verify, TrialDiv 
Score (*):  34.0958 (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.
 Elliptic Curve Primality Proof (archivable *)
 Prime on list: no, rank 38
Subcategory: "ECPP"
(archival tag id 217240, tag last modified 20190602 14:20:07)  Lucas Number (archivable *)
 Prime on list: yes, rank 5
Subcategory: "Lucas Number"
(archival tag id 217241, tag last modified 20150923 10:50:29)
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.
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.
field  value 
prime_id  115420 
person_id  9 
machine  Ditto P4 P4 
what  prp 
notes  Command: /home/ditto/client/pfgw tc q"V(81671)" 2>&1 PFGW Version 3.4.5.32BIT.20110215.x86_Dev [GWNUM 26.5] Primality testing V(81671) [N1/N+1, BrillhartLehmerSelfridge] Running N1 test using base 7 Running N+1 test using discriminant 13, base 1+sqrt(13) Calling N+1 BLS with factored part 0.32% and helper 0.23% (1.19% proof) V(81671) is Fermat and Lucas PRP! (127.5803s+0.0091s) [Elapsed time: 2.12 minutes]

modified  20131021 18:10:45 
created  20130907 17:34:30 
id  160889 

Query times: 0.0004 seconds to select prime, 0.0003 seconds to seek comments.
