1345609563237 · 21290000 - 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:1345609563237 · 21290000 - 1
Verification status (*):Proven
Official Comment:
Proof-code(s): (*):L3401 : Bartlett, TwinGen, PrimeGrid, LLR
Decimal Digits:388341   (log10 is 388340.8233256)
Rank (*):7893 (digit rank is 580)
Entrance Rank (*):1776
Currently on list? (*):no
Submitted:4/10/2014 21:05:57 CDT
Last modified:4/10/2014 21:52:31 CDT
Removed (*):4/9/2016 23:21:16 CDT
Database id:117598
Status Flags:TrialDiv
Score (*):43.7286 (normalized score 0.8774)

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.
fieldvalue
prime_id117598
person_id9
machineWinXP Dual Core 2.6GHz 64-bit Laptop
whatprime
notesCommand: cllr64.exe -q"1345609563237*2^1290000-1" 2>&1 -d
Starting Lucas Lehmer Riesel prime test of 1345609563237*2^1290000-1
Using zero-padded AVX FFT length 128K, Pass1=128, Pass2=1K
V1 = 5 ; Computing U0...
V1 = 5 ; Computing U0...done.
Starting Lucas-Lehmer loop...
[Elapsed time: 1534 seconds]
modified2014-04-14 15:25:10
created2014-04-10 21:13:35
id163132

Query times: 0.0004 seconds to select prime, 0.0007 seconds to seek comments.