11 · 24643238 - 1
(Another of the Prime Pages' resources)
The Largest Known Primes Icon
  View this page in:   language help

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 · 24643238 - 1
Verification status (*):Proven
Official Comment:
Proof-code(s): (*):L2484 : Ritschel, PSieve, Srsieve, Rieselprime, LLR
Decimal Digits:1397755   (log10 is 1397754.95639952)
Rank (*):107 (digit rank is 1)
Entrance Rank (*):42
Currently on list? (*):short
Submitted:3/31/2014 05:53:11 CDT
Last modified:3/31/2014 11:52:12 CDT
Database id:117523
Status Flags:TrialDiv
Score (*):47.6602 (normalized score 46.8868)

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.
machineWinXP Dual Core 2.6GHz 32-bit
notesCommand: cllr.exe -q"11*2^4643238-1" 2>&1 -d
Starting Lucas Lehmer Riesel prime test of 11*2^4643238-1
Using FFT length 256K, Pass1=1K, Pass2=256
V1 = 4 ; Computing U0...
V1 = 4 ; Computing U0...done.
Starting Lucas-Lehmer loop...
[Elapsed time: 17680 seconds]
modified2014-04-01 17:37:37
created2014-03-31 06:46:33

Query times: 0.0004 seconds to select prime, 0.0006 seconds to seek comments.