30832382865 · 2333333 - 1
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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:30832382865 · 2333333 - 1
Verification status (*):Proven
Official Comment:
Proof-code(s): (*):L472 : Parry, NewPGen, PrimeGrid, TPS, LLR
Decimal Digits:100354   (log10 is 100353.72055175)
Rank (*):41151 (digit rank is 545)
Entrance Rank (*):4393
Currently on list? (*):no
Submitted:1/15/2008 13:15:45 CDT
Last modified:1/15/2008 20:28:41 CDT
Removed (*):3/2/2008 17:36:40 CDT
Database id:83658
Status Flags:none
Score (*):39.5651 (normalized score 0.0118)

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_id83658
person_id9
machineRedHat P4 P4
whattrial_divided
notesCommand: /home/caldwell/client/TrialDiv/TrialDiv -q 30832382865 2 333333 -1 2>&1
[Elapsed time: 9.345 seconds]
modified2011-12-27 16:48:48
created2008-01-15 13:22:11
id96368

fieldvalue
prime_id83658
person_id9
machineRedHat P4 P4
whatprime
notesCommand: /home/caldwell/client/llr.pl 30832382865*2^333333-1 2>&1
Starting Lucas Lehmer Riesel prime test of 30832382865*2^333333-1
V1 = 9 ; Computing U0...
Done Computing U0.
Starting Lucas-Lehmer loop...
30832382865*2^333333-1 is prime! Time: 1281.394 sec.
[Elapsed time: 21.37 minutes]
modified2008-01-16 12:16:41
created2008-01-15 20:07:19
id96392

Query times: 0.0005 seconds to select prime, 0.0008 seconds to seek comments.