Phi(5015, - 10000)
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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:Phi(5015, - 10000)
Verification status (*):PRP
Official Comment:Unique, ECPP
Unofficial Comments:This prime has 1 user comment below.
Proof-code(s): (*):c47 : Chandler, Primo
Decimal Digits:14848   (log10 is 14847.9999565727)
Rank (*):67864 (digit rank is 1)
Entrance Rank (*):58576
Currently on list? (*):short
Submitted:4/25/2013 14:30:56 CDT
Last modified:4/25/2013 14:50:32 CDT
Database id:113963
Status Flags:Verify
Score (*):33.6645 (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 52
Subcategory: "ECPP"
(archival tag id 217105, tag last modified 2017-06-04 14:20:21)
Unique (archivable *)
Prime on list: yes, rank 6
Subcategory: "Unique"
(archival tag id 217106, tag last modified 2014-05-20 07:51:28)

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.

Ray Chandler writes (11 Sep 2014): 
See ecpp14848.7z on Primo Top-20

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_id113963
person_id9
machineDitto P4 P4
whattrial_divided
notesCommand: /home/ditto/client/pfgw -o -f -q"Phi(5015,-10000)" 2>&1
PFGW Version 3.4.5.32BIT.20110215.x86_Dev [GWNUM 26.5]
Phi(5015,-10000) 1/1 mro=0


trial factoring to 4402801
Phi(5015,-10000) has no small factor.
[Elapsed time: 5.726 seconds]
modified2013-06-04 07:30:39
created2013-04-25 14:35:01
id158285

fieldvalue
prime_id113963
person_id9
machineDitto P4 P4
whatprp
notesCommand: /home/ditto/client/pfgw -t -q"Phi(5015,-10000)" 2>&1
PFGW Version 3.4.5.32BIT.20110215.x86_Dev [GWNUM 26.5]
Primality testing Phi(5015,-10000) [N-1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 29
Calling Brillhart-Lehmer-Selfridge with factored part 0.53%
Phi(5015,-10000) is PRP! (26.8256s+0.0025s)
[Elapsed time: 27.00 seconds]
modified2013-06-04 07:30:39
created2013-04-25 14:38:01
id158286

Query times: 0.0004 seconds to select prime, 0.0006 seconds to seek comments.