10495740081 · 283125 - 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:10495740081 · 283125 - 1
Verification status (*):Proven
Official Comment (*):Sophie Germain (p)
Proof-code(s): (*):L99 : Underbakke, TwinGen, LLR
Decimal Digits:25034   (log10 is 25033.139402636)
Rank (*):71401 (digit rank is 2)
Entrance Rank (*):20065
Currently on list? (*):no
Submitted:2/10/2006 01:42:42 UTC
Last modified:3/11/2023 15:54:10 UTC
Database id:77012
Status Flags:none
Score (*):35.2803 (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.
Sophie Germain (p) (archivable *)
Prime on list: no, rank 47
Subcategory: "Sophie Germain (p)"
(archival tag id 191794, tag last modified 2023-11-19 12:37:21)

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_id77012
person_id9
machineLinux P4 2.8GHz
whattrial_divided
notesCommand: /home/caldwell/client/TrialDiv/TrialDiv -q 10495740081 2 83125 -1 2>&1 [Elapsed time: 13.815 seconds]
modified2020-07-07 22:30:42
created2006-02-10 01:52:14
id83016

fieldvalue
prime_id77012
person_id9
machineWinXP Pentium M 1.7GHz
whatprime
notesCommand: pfgw.exe -n -tp -q"10495740081*2^83125-1" 2>&1 Primality testing 10495740081*2^83125-1 [N+1, Brillhart-Lehmer-Selfridge] Calling Brillhart-Lehmer-Selfridge with factored part 99.96% 10495740081*2^83125-1 is prime! (442.4620s+0.3242s) PFGW Version 20030811.Win_Dev (Beta 'caveat utilitor') [FFT v22.13 w/P4] Running N+1 test using discriminant 7, base 1+sqrt(7) [Elapsed time: 444 seconds]
modified2020-07-07 22:30:42
created2006-02-10 06:10:29
id83019

Query times: 0.0002 seconds to select prime, 0.0002 seconds to seek comments.
Printed from the PrimePages <t5k.org> © Reginald McLean.