872! + 1
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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:872! + 1
Verification status (*):Proven
Official Comment:Factorial
Proof-code(s): (*):D : Dubner, Cruncher
Decimal Digits:2188   (log10 is 2187.29497632188)
Rank (*):90183 (digit rank is 3)
Entrance Rank (*):32
Currently on list? (*):short
Submitted:1983
Last modified:1983
Database id:33856
Status Flags:none
Score (*):27.7162 (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.
Factorial primes (archivable *)
Prime on list: yes, rank 17
Subcategory: "Factorial"
(archival tag id 175918, tag last modified 2016-07-27 01:20:35)

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_id33856
person_id9
machineLinux PII 200
whatprime
notesPFGW Version 20020311.x86_Dev (Alpha software, 'caveat utilitor') Running N-1 test using base 877 Primality testing 872!+1 [N-1, Brillhart-Lehmer-Selfridge] Calling Brillhart-Lehmer-Selfridge with factored part 33.75% 872!+1 is prime! (16.970000 seconds)
modified2003-03-25 11:23:35
created2002-12-28 05:50:31
id55651

Query times: 0.0003 seconds to select prime, 0.0005 seconds to seek comments.