192335307 · 225000 - 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:192335307 · 225000 - 1
Verification status (*):Proven
Official Comment (*):Consecutive primes arithmetic progression (2,d=5130)
Unofficial Comments:This prime has 1 user comment below.
Proof-code(s): (*):p54 : Water, Broadhurst, OpenPFGW
Decimal Digits:7535   (log10 is 7534.0339506145)
Rank (*):80162 (digit rank is 26)
Entrance Rank (*):67587
Currently on list? (*):no
Submitted:9/4/2013 18:08:04 CDT
Last modified:9/4/2013 18:20:31 CDT
Database id:115382
Status Flags:TrialDiv
Score (*):31.562 (normalized score 0)

Archival tags:

There are certain forms classed as archivable: these prime may (at times) remain on this list even if they do not make the Top 5000 proper.  Such primes are tracked with archival tags.
Consecutive Primes in Arithmetic Progression (archivable class *)
Prime on list: no, rank 15
Subcategory: "Consecutive primes in arithmetic progression (2,d=*)"
(archival tag id 217229, tag last modified 2020-04-27 12:20:26)
Arithmetic Progressions of Primes (archivable class *)
Prime on list: no, rank 145
Subcategory: "Arithmetic progression (2,d=*)"
(archival tag id 217230, tag last modified 2020-04-27 12:20:24)

User comments about this prime (disclaimer):

User comments are allowed to convey mathematical information about this number, how it was proven prime.... See our guidelines and restrictions.

David Broadhurst writes (11 Sep 2014):  (report abuse)
Discovered in 2005

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.
machineDitto P4 P4
notesCommand: /home/ditto/client/llr.pl 192335307*2^25000-1 2>&1 Starting Lucas Lehmer Riesel prime test of 192335307*2^25000-1 Using Zero Padded IBDWT : Mersenne fftlen = 1280, Used fftlen = 2560 V1 = 9 ; Computing U0... V1 = 9 ; Computing U0...done. Starting Lucas-Lehmer loop... 192335307*2^25000-1 is prime! Time : 1.579 sec. [Elapsed time: 2.00 seconds]
modified2020-07-07 17:30:18
created2013-09-04 18:08:32

Query times: 0.0003 seconds to select prime, 0.0004 seconds to seek comments.
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