304207 · 26643565 - 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.

This prime's information:

Description:304207 · 26643565 - 1
Verification status (*):Proven
Official Comment (*):[none]
Unofficial Comments:This prime has 1 user comment below.
Proof-code(s): (*):L3547 : Ready, Srsieve, PrimeGrid, LLR
Decimal Digits:1999918   (log10 is 1999917.8263126)
Rank (*):310 (digit rank is 1)
Entrance Rank (*):23
Currently on list? (*):short
Submitted:10/11/2013 07:41:56 UTC
Last modified:5/20/2023 20:59:19 UTC
Database id:115875
Status Flags:none
Score (*):48.7585 (normalized score 39.3361)

User comments about this prime (disclaimer):

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PrimeGrid writes (27 Nov 2016):  (report abuse)
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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_id115875
person_id9
machineRedHat P4 P4
whatprime
notesCommand: /home/caldwell/client/llr.pl 304207*2^6643565-1 2>&1 Starting Lucas Lehmer Riesel prime test of 304207*2^6643565-1 Using Irrational Base DWT : Mersenne fftlen = 393216, Used fftlen = 655360 V1 = 4 ; Computing U0... V1 = 4 ; Computing U0...done. Starting Lucas-Lehmer loop... 304207*2^6643565-1 is prime! Time : 144406.611 sec. [Elapsed time: 1.67 days]
modified2020-07-07 22:30:18
created2013-10-11 07:53:02
id161375

Query times: 0.0002 seconds to select prime, 0.0003 seconds to seek comments.
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