
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:  p(221444161) 
Verification status (*):  PRP 
Official Comment:  Partitions, ECPP 
Unofficial Comments:  This prime has 1 user comment below. 
Proofcode(s): (*):  c77 : Batalov, Primo 
Decimal Digits:  16569 (log_{10} is 16568.376495635) 
Rank (*):  67288 (digit rank is 1) 
Entrance Rank (*):  65673 
Currently on list? (*):  short 
Submitted:  4/18/2017 09:42:43 CDT 
Last modified:  4/18/2017 10:20:19 CDT 
Database id:  123290 
Blob database id:  365 
Status Flags:  Verify, TrialDiv 
Score (*):  34.0039 (normalized score 0) 

Description:
(from blob table id=365)
The number of unrestricted integer partitions of 221444161 is p(221444161).
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 43
Subcategory: "ECPP"
(archival tag id 218706, tag last modified 20180413 14:26:58)  Partitions (archivable *)
 Prime on list: yes, rank 1
Subcategory: "Partitions"
(archival tag id 218707, tag last modified 20170418 10:20:22)
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  123290 
person_id  9 
machine  Using: Xeon (pool) 4c+4c 3.5GHz 
what  prp 
notes  PFGW Version 3.7.7.64BIT.20130722.x86_Dev [GWNUM 27.11] Primality testing 2379554384...4199797591 [N1/N+1, BrillhartLehmerSelfridge] Running N1 test using base 3 Running N+1 test using discriminant 11, base 1+sqrt(11) Calling N1 BLS with factored part 0.02% and helper 0.01% (0.07% proof)
2379554384...4199797591 is Fermat and Lucas PRP! (21.3673s+0.0056s) [Elapsed time: 21.00 seconds]

modified  20170807 13:02:22 
created  20170418 10:13:02 
id  168940 

Query times: 0.0004 seconds to select prime, 0.0007 seconds to seek comments.
