
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:  974!  1 
Verification status (*):  Proven 
Official Comment:  Factorial 
Proofcode(s): (*):  CD : Dubner, Caldwell, Cruncher 
Decimal Digits:  2490 (log_{10} is 2489.74700519592) 
Rank (*):  87813 (digit rank is 1) 
Entrance Rank (*):  709 
Currently on list? (*):  short 
Submitted:  10/1992 
Last modified:  10/1992 
Database id:  31592 
Status Flags:  none 
Score (*):  28.1199 (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 16
Subcategory: "Factorial"
(archival tag id 175683, tag last modified 20160727 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.
field  value 
prime_id  31592 
person_id  9 
machine  Windows XP P4 1.8GHz 
what  prime 
notes  Primality testing 974!1 [N+1, BrillhartLehmerSelfridge] Calling BrillhartLehmerSelfridge with factored part 37.17% 974!1 is prime! (21.984000 seconds) PFGW Version 20021217.Win_Dev (Beta 'caveat utilitor') [FFT v22.7 w/P4] Running N+1 test using discriminant 977, base 1+sqrt(977) Running N+1 test using discriminant 977, base 2+sqrt(977) Running N+1 test using discriminant 977, base 3+sqrt(977) 
modified  20030325 11:23:49 
created  20021227 14:49:36 
id  53217 

Query times: 0.0001 seconds to select prime, 0.0001 seconds to seek comments.
