5775 · 21258855 + 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:5775 · 21258855 + 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):L3262 : Molder, PSieve, Srsieve, PrimeGrid, LLR
Decimal Digits:378957   (log10 is 378956.87674357)
Rank (*):18079 (digit rank is 1)
Entrance Rank (*):3020
Currently on list? (*):no
Submitted:4/9/2014 10:24:39 UTC
Last modified:5/20/2023 20:59:19 UTC
Removed (*):5/3/2015 05:49:32 UTC
Database id:117586
Status Flags:none
Score (*):43.6535 (normalized score 0.2711)

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_id117586
person_id9
machineWinXP Dual Core 2.6GHz 64-bit Laptop
whatprime
notesCommand: pfgw64.exe -t -q"5775*2^1258855+1" 2>&1 PFGW Version 3.7.3.64BIT.20130210.Win_Dev [GWNUM 27.8] Primality testing 5775*2^1258855+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 13 Calling Brillhart-Lehmer-Selfridge with factored part 100.00% 5775*2^1258855+1 is prime! (979.9375s+0.0026s) [Elapsed time: 982 seconds]
modified2020-07-07 22:30:17
created2014-04-09 13:17:21
id163121

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