667674063382677 · 233608 - 1

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:667674063382677 · 233608 - 1
Verification status (*):Proven
Official Comment (*):Quadruplet (1)
Proof-code(s): (*):L4808 : Kaiser1, PolySieve, LLR
Decimal Digits:10132   (log10 is 10131.840658781)
Rank (*):82504 (digit rank is 4)
Entrance Rank (*):74255
Currently on list? (*):short
Submitted:2/25/2019 17:20:46 UTC
Last modified:5/20/2023 20:59:19 UTC
Database id:126247
Status Flags:none
Score (*):32.4807 (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.
Quadruplet (archivable class *)
Prime on list: yes, rank 1
Subcategory: "Quadruplet (1)"
(archival tag id 220149, tag last modified 2023-03-11 15:53:59)

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_id126247
person_id9
machineUsing: Xeon 4c+4c 3.5GHz
whatprime
notesCommand: /home/caldwell/client/llr.pl 667674063382677*2^33608-1 2>&1 Starting Lucas Lehmer Riesel prime test of 667674063382677*2^33608-1 Using zero-padded AVX FFT length 4K V1 = 15 ; Computing U0... V1 = 15 ; Computing U0...done.Starting Lucas-Lehmer loop... 667674063382677*2^33608-1 is prime! (10132 decimal digits) Time : 533.998 ms. [Elapsed time: 1.00 seconds]
modified2020-07-07 22:30:13
created2019-02-25 17:21:03
id171925

Query times: 0.0002 seconds to select prime, 0.0005 seconds to seek comments.
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