525 · 2527270 - 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:525 · 2527270 - 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):L79 : Benson, NewPGen, NPLB, LLR
Decimal Digits:158727   (log10 is 158726.80597305)
Rank (*):39761 (digit rank is 1)
Entrance Rank (*):873
Currently on list? (*):no
Submitted:5/27/2007 20:49:49 UTC
Last modified:3/11/2023 15:54:10 UTC
Removed (*):8/7/2010 14:01:13 UTC
Database id:80728
Status Flags:none
Score (*):40.977 (normalized score 0.0184)

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_id80728
person_id9
machineRedHat P4 P4
whattrial_divided
notesCommand: /home/caldwell/client/TrialDiv/TrialDiv -q 525 2 527270 -1 2>&1 [Elapsed time: 9.885 seconds]
modified2020-07-07 22:30:41
created2007-05-27 20:52:01
id90561

fieldvalue
prime_id80728
person_id9
machineRedHat P4 P4
whatprime
notesCommand: /home/caldwell/client/llr.pl 525*2^527270-1 2>&1 Starting Lucas Lehmer Riesel prime test of 525*2^527270-1 V1 = 11 ; Computing U0... Done Computing U0. Starting Lucas-Lehmer loop... 525*2^527270-1 is prime! Time : 1276.585 sec. [Elapsed time: 1277 seconds]
modified2020-07-07 22:30:41
created2007-05-27 20:53:01
id90565

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