239 · 30337990 - 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:239 · 30337990 - 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):p268 : Rodenkirch, Srsieve, CRUS, OpenPFGW
Decimal Digits:499255   (log10 is 499254.5912806)
Rank (*):4295 (digit rank is 1)
Entrance Rank (*):242
Currently on list? (*):yes
Submitted:6/6/2012 19:45:05 CDT
Last modified:1/1/2013 23:13:18 CDT
Database id:107537
Status Flags:none
Score (*):44.5005 (normalized score 1.1207)

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 239 30 337990 -1 2>&1 [Elapsed time: 9.567 seconds]
modified2020-07-07 17:30:25
created2012-06-06 19:48:02

machineRedHat Virtual STEM Server
notesCommand: /home/caldwell/client/pfgw -tp -q"239*30^337990-1" 2>&1 PFGW Version [GWNUM 25.14] Primality testing 239*30^337990-1 [N+1, Brillhart-Lehmer-Selfridge] Running N+1 test using discriminant 7, base 1+sqrt(7) Calling Brillhart-Lehmer-Selfridge with factored part 47.32% 239*30^337990-1 is prime! (38217.7943s+0.0863s) [Elapsed time: 10.62 hours]
modified2020-07-07 17:30:25
created2012-06-06 19:52:24

Query times: 0.0003 seconds to select prime, 0.0003 seconds to seek comments.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.