(V(4527, 1, 3771) + 1)/(V(4527, 1, 9) + 1)

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Description:(V(4527, 1, 3771) + 1)/(V(4527, 1, 9) + 1)
Verification status (*):PRP
Official Comment (*):Lehmer primitive part
Unofficial Comments:This prime has 1 user comment below.
Proof-code(s): (*):x25 : Water, Broadhurst, Primo, OpenPFGW
Decimal Digits:13754   (log10 is 13753.159000568)
Rank (*):72755 (digit rank is 2)
Entrance Rank (*):58566
Currently on list? (*):short
Submitted:2/19/2013 17:19:29 CDT
Last modified:2/19/2013 17:50:27 CDT
Database id:111290
Status Flags:Verify
Score (*):33.4274 (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.
Lehmer primitive part (archivable *)
Prime on list: yes, rank 20
Subcategory: "Lehmer primitive part"
(archival tag id 215093, tag last modified 2019-08-26 13:20:28)

User comments about this prime (disclaimer):

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David Broadhurst writes (11 Sep 2014):  (report abuse)
CHG proof

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.
machineDitto P4 P4
notesCommand: /home/ditto/client/pfgw -o -f -q"(lucasV(4527,1,3771)+1)/(lucasV(4527,1,9)+1)" 2>&1 PFGW Version [GWNUM 26.5] (lucasV(4527,1,3....asV(4527,1,9)+1) 1/1 mro=0 trial factoring to 4053746 (lucasV(4527,1,3771)+1)/(lucasV(4527,1,9)+1) has no small factor. [Elapsed time: 5.257 seconds]
modified2020-07-07 17:30:22
created2013-02-19 17:35:01

machineDitto P4 P4
notesCommand: /home/ditto/client/pfgw -tc -q"(lucasV(4527,1,3771)+1)/(lucasV(4527,1,9)+1)" 2>&1 PFGW Version [GWNUM 26.5] Primality testing (lucasV(4527,1,3771)+1)/(lucasV(4527,1,9)+1) [N-1/N+1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 17 Running N-1 test using base 47 Running N+1 test using discriminant 59, base 5+sqrt(59) Calling N-1 BLS with factored part 1.53% and helper 0.12% (4.70% proof) (lucasV(4527,1,3771)+1)/(lucasV(4527,1,9)+1) is Fermat and Lucas PRP! (101.4143s+0.0023s) [Elapsed time: 1.70 minutes]
modified2020-07-07 17:30:22
created2013-02-19 17:41:31

Query times: 0.0005 seconds to select prime, 0.0008 seconds to seek comments.
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