49 · 23309087 - 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:49 · 23309087 - 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):L1959 : Metcalfe, PSieve, Srsieve, Rieselprime, LLR
Decimal Digits:996137   (log10 is 996136.13545782)
Rank (*):773 (digit rank is 1)
Entrance Rank (*):68
Currently on list? (*):short
Submitted:7/17/2013 11:39:59 CDT
Last modified:7/17/2013 20:50:28 CDT
Database id:114707
Status Flags:none
Score (*):46.6211 (normalized score 10.9367)

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 49 2 3309087 -1 2>&1 [Elapsed time: 11.018 seconds]
modified2020-07-07 17:30:18
created2013-07-17 11:48:01

machineWinXP Dual Core 2.6GHz 64-bit Laptop
notesCommand: cllr64.exe -q"49*2^3309087-1" 2>&1 -d Starting Lucas Lehmer Riesel prime test of 49*2^3309087-1 Using AVX FFT length 192K, Pass1=256, Pass2=768 V1 = 4 ; Computing U0... V1 = 4 ; Computing U0...done. Starting Lucas-Lehmer loop... [Elapsed time: 3715 seconds]
modified2020-07-07 17:30:18
created2013-07-17 19:27:33

Query times: 0.0004 seconds to select prime, 0.0006 seconds to seek comments.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.