549 · 21832457 + 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:549 · 21832457 + 1
Verification status (*):Proven
Official Comment:
Unofficial Comments:This prime has 1 user comment below.
Proof-code(s): (*):L3641 : Adams4, PSieve, Srsieve, PrimeGrid, LLR
Decimal Digits:551628   (log10 is 551627.26233678)
Rank (*):2061 (digit rank is 1)
Entrance Rank (*):363
Currently on list? (*):yes
Submitted:9/16/2013 11:34:41 CDT
Last modified:9/21/2013 21:22:56 CDT
Database id:115525
Status Flags:TrialDiv
Score (*):44.8069 (normalized score 2.1565)

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.

Greg Adams writes (11 Sep 2014): 
Divides xGF(1832454,7,6)!!!!

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.
machineRedHat P4 P4
notesCommand: /home/caldwell/client/pfgw -t -q"549*2^1832457+1" 2>&1
PFGW Version [GWNUM 26.5]
Primality testing 549*2^1832457+1 [N-1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 17
Calling Brillhart-Lehmer-Selfridge with factored part 100.00%
549*2^1832457+1 is prime! (8022.3720s+0.0014s)
[Elapsed time: 2.23 hours]
modified2013-10-21 18:10:45
created2013-09-16 11:53:02

Query times: 0.0005 seconds to select prime, 0.0007 seconds to seek comments.