"Ramanujan tau function at 199^4518"

At this site we maintain a list of the 5000 Largest Known Primes which is updated hourly.  This list is the most important PrimePages database: 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:

Description:"Ramanujan tau function at 199^4518"
Verification status (*):PRP
Official Comment (*):ECPP
Proof-code(s): (*):E3 : Enge, CM
Decimal Digits:57125   (log10 is 57124.162537428)
Rank (*):56386 (digit rank is 1)
Entrance Rank (*):54894
Currently on list? (*):short
Submitted:9/9/2022 18:53:05 UTC
Last modified:3/11/2023 16:02:01 UTC
Database id:134371
Blob database id:442
Status Flags:Verify, TrialDiv
Score (*):37.828 (normalized score 0.0009)

Description: (from blob table id=442)

[This prime has a pre-calculated decimal expansion (linked blob)]

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: yes, rank 3
Subcategory: "ECPP"
(archival tag id 227309, tag last modified 2023-03-11 16:02:30)

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.
machineUsing: Dual Intel Xeon Gold 5222 CPUs 3.8GHz
notesCommand: /home/caldwell/clientpool/1/pfgw64 -tc p_134371.txt 2>&1
PFGW Version [GWNUM 29.8]
Primality testing 1453909679...7604870201 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 11
Running N+1 test using discriminant 17, base 10+sqrt(17)
Calling N-1 BLS with factored part 0.04% and helper 0.01% (0.15% proof)

1453909679...7604870201 is Fermat and Lucas PRP! (107.9871s+0.0082s)
[Elapsed time: 1.80 minutes]
modified2022-09-09 19:05:49
created2022-09-09 19:04:01

Query times: 0.0005 seconds to select prime, 0.001 seconds to seek comments.
Printed from the PrimePages <t5k.org> © Reginald McLean.