113 · 2916801 + 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:113 · 2916801 + 1
Verification status (*):Proven
Official Comment (*):Divides GF(916800,5), GF(916800,12)
Unofficial Comments:This prime has 1 user comment below.
Proof-code(s): (*):L153 : Eckhard, LLR
Decimal Digits:275987   (log10 is 275986.65413318)
Rank (*):24259 (digit rank is 1)
Entrance Rank (*):342
Currently on list? (*):no
Submitted:5/12/2009 10:09:03 UTC
Last modified:3/11/2023 15:54:10 UTC
Database id:88217
Status Flags:none
Score (*):42.6788 (normalized score 0.1014)

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 Fermat Divisors (bases 3,5,6,10,12) (archivable *)
Prime on list: no, rank 28, weight 47.406233873725
Subcategory: "Divides GF(*,5)"
(archival tag id 210445, tag last modified 2024-03-22 08:37:11)
Generalized Fermat Divisors (bases 3,5,6,10,12) (archivable *)
Prime on list: no, rank 25, weight 47.406233873725
Subcategory: "Divides GF(*,12)"
(archival tag id 210446, tag last modified 2023-12-03 17:37:19)

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.

Ruediger K. Eckhard writes (11 Sep 2014):  (report abuse)
A factor of xGF(916798,12,5).

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_id88217
person_id9
machineRedHat P4 P4
whattrial_divided
notesCommand: /home/caldwell/client/TrialDiv/TrialDiv -q 113 2 916801 1 2>&1 [Elapsed time: 9.984 seconds]
modified2020-07-07 22:30:38
created2009-05-12 10:18:02
id105796

fieldvalue
prime_id88217
person_id9
machineRedHat P4 P4
whatprime
notesCommand: /home/caldwell/client/pfgw -t -q"113*2^916801+1" 2>&1 PFGW Version 20031027.x86_Dev (Beta 'caveat utilitor') [FFT v22.13 w/P4] Primality testing 113*2^916801+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 3 Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(114688,20) to FFT(114688,19) Reduced from FFT(114688,19) to FFT(114688,18) Reduced from FFT(114688,18) to FFT(114688,17) Reduced from FFT(114688,17) to FFT(114688,16) 1833624 bit request FFT size=(114688,16) Calling Brillhart-Lehmer-Selfridge with factored part 100.00% 113*2^916801+1 is prime! (4634.1654s+0.0008s) [Elapsed time: 77.23 minutes]
modified2020-07-07 22:30:38
created2009-05-12 10:23:02
id105797

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