519 · 2567235 + 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.

Description:519 · 2567235 + 1
Verification status (*):Proven
Official Comment (*):Divides Fermat F(567233)
Proof-code(s): (*):L656 : Yama, Srsieve, PrimeGrid, LLR
Decimal Digits:170758   (log10 is 170757.46475782)
Rank (*):33169 (digit rank is 1)
Entrance Rank (*):1467
Currently on list? (*):no
Submitted:3/6/2009 16:49:04 CDT
Last modified:3/6/2009 17:20:18 CDT
Database id:87008
Status Flags:none
Score (*):41.2019 (normalized score 0.0395)

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.
Fermat Divisors (archivable *)
Prime on list: no, rank 21, weight 47.453833168237
Subcategory: "Divides Fermat"
(archival tag id 208928, tag last modified 2021-01-16 15:20:20)

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.
machineRedHat P4 P4
notesCommand: /home/caldwell/client/TrialDiv/TrialDiv -q 519 2 567235 1 2>&1 [Elapsed time: 9.778 seconds]
modified2020-07-07 17:30:38
created2009-03-06 16:52:02

machineRedHat P4 P4
notesCommand: /home/caldwell/client/pfgw -t -q"519*2^567235+1" 2>&1 PFGW Version 20031027.x86_Dev (Beta 'caveat utilitor') [FFT v22.13 w/P4] Primality testing 519*2^567235+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 5 Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(65536,20) to FFT(65536,19) Reduced from FFT(65536,19) to FFT(65536,18) 1134498 bit request FFT size=(65536,18) Calling Brillhart-Lehmer-Selfridge with factored part 100.00% 519*2^567235+1 is prime! (1520.0700s+0.0000s) [Elapsed time: 25.40 minutes]
modified2020-07-07 17:30:38
created2009-03-06 16:53:01

Query times: 0.0005 seconds to select prime, 0.0007 seconds to seek comments.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.