371 · 22150871 + 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:371 · 22150871 + 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):L2545 : Nose, PSieve, Srsieve, PrimeGrid, LLR
Decimal Digits:647480   (log10 is 647479.25717769)
Rank (*):3914 (digit rank is 1)
Entrance Rank (*):270
Currently on list? (*):yes
Submitted:4/5/2014 17:54:53 UTC
Last modified:5/20/2023 20:59:19 UTC
Database id:117559
Status Flags:none
Score (*):45.2989 (normalized score 1.6334)

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.
machineWinXP Dual Core 2.6GHz 64-bit Laptop
notesCommand: pfgw64.exe -t -q"371*2^2150871+1" 2>&1 PFGW Version [GWNUM 27.8] Primality testing 371*2^2150871+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 3 Calling Brillhart-Lehmer-Selfridge with factored part 100.00% 371*2^2150871+1 is prime! (3488.4257s+0.0028s) [Elapsed time: 3488 seconds]
modified2020-07-07 22:30:17
created2014-04-05 21:39:32

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