At this site we maintain a list of the 5000 Largest Known Primes which is updated hourly. This list is the most important databases at The Prime Pages: 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:

field (help) value Description: 11 · 2960901+1 Verification status (*): Proven Official Comment: Divides Fermat F(960897) Proof-code(s): (*): g277 : Eaton, PRP, NewPGen, Proth.exe Decimal Digits: 289262   (log10 is 289261.0652562) Rank (*): 351 (digit rank is 1) Entrance Rank (*): 82 Currently on list? (*): short Submitted: 2/23/2005 13:53:21 CDT Last modified: 2/23/2005 13:53:21 CDT Database id: 73518 Status Flags: none Score (*): 42.8232 (normalized score 9.0849)

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.

Prime Fermat Divisors (archivable *)

Prime on list: yes, rank 4, weight 45.221182180927
Subcategory: "Divides Fermat"
(archival tag id 187107, tag last modified 2009-02-12 20:20:07)

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.

field value prime_id 73518 person_id 9 machine WinXP P4 1.8GHz what prime notes Command: pfgw.exe -n -f -t -q"11*2^960901+1" 2>&1 PFGW Version 20030811.Win_Dev (Beta 'caveat utilitor') [FFT v22.13 w/P4] trial factoring to 105748250 Running N-1 test using base 3 N-1: 11*2^960901+1 932500/Primality testing 11*2^960901+1 [N-1, Brillhart-Lehmer-Selfridge] Calling Brillhart-Lehmer-Selfridge with factored part 100.00% 11*2^960901+1 is prime! (14228.6053s+0.0022s) 960906 modified 2005-03-29 11:22:33 created 2005-02-23 17:22:47 id 78535