(142614663 - 1)/14260

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:(142614663 - 1)/14260
Verification status (*):PRP
Official Comment (*):Generalized repunit
Unofficial Comments:This prime has 1 user comment below.
Proof-code(s): (*):x14 : Steward, OpenPFGW, Primo
Decimal Digits:19367   (log10 is 19366.647236662)
Rank (*):74273 (digit rank is 1)
Entrance Rank (*):28437
Currently on list? (*):no
Submitted:11/4/2007 19:44:21 UTC
Last modified:3/11/2023 15:54:10 UTC
Database id:82859
Status Flags:Verify
Score (*):34.4867 (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.
Generalized Repunit (archivable *)
Prime on list: no, rank 40
Subcategory: "Generalized Repunit"
(archival tag id 192271, tag last modified 2024-02-26 02:37:04)

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.

Andrew A. D. Steward writes (11 Sep 2014):  (report abuse)
Certificate at http://www.primes.viner-steward.org/andy/E/37B51237.html

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_id82859
person_id9
machineRedHat P4 P4
whattrial_divided
notesCommand: /home/caldwell/client/pfgw -o -f -q"(14261^4663-1)/14260" 2>&1 PFGW Version 20031027.x86_Dev (Beta 'caveat utilitor') [FFT v22.13 w/P4] trial factoring to 5862403 (14261^4663-1)/14260 has no small factor. [Elapsed time: 9.740 seconds]
modified2020-07-07 22:30:40
created2007-11-04 19:52:17
id94834

fieldvalue
prime_id82859
person_id9
machineRedHat P4 P4
whatprp
notesCommand: /home/caldwell/client/pfgw -tc -q"(14261^4663-1)/14260" 2>&1 PFGW Version 20031027.x86_Dev (Beta 'caveat utilitor') [FFT v22.13 w/P4] Primality testing (14261^4663-1)/14260 [N-1/N+1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 2 Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(7168,21) to FFT(7168,20) Reduced from FFT(7168,20) to FFT(7168,19) Reduced from FFT(7168,19) to FFT(7168,18) 128678 bit request FFT size=(7168,18) Running N-1 test using base 3 Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(7168,21) to FFT(7168,20) Reduced from FFT(7168,20) to FFT(7168,19) Reduced from FFT(7168,19) to FFT(7168,18) 128678 bit request FFT size=(7168,18) Running N+1 test using discriminant 7, base 1+sqrt(7) Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(7168,21) to FFT(7168,20) Reduced from FFT(7168,20) to FFT(7168,19) Reduced from FFT(7168,19) to FFT(7168,18) 128686 bit request FFT size=(7168,18) Calling N-1 BLS with factored part 0.78% and helper 0.00% (2.34% proof) (14261^4663-1)/14260 is Fermat and Lucas PRP! (203.2000s+0.0000s) [Elapsed time: 3.43 minutes]
modified2020-07-07 22:30:40
created2007-11-04 19:57:46
id94837

Query times: 0.0002 seconds to select prime, 0.0003 seconds to seek comments.
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