5405 · 21566119 + 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.

Description:5405 · 21566119 + 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):L4951 : Niegocki, PSieve, Srsieve, PrimeGrid, LLR
Decimal Digits:471453   (log10 is 471452.528574977)
Rank (*):4467 (digit rank is 1)
Entrance Rank (*):3678
Currently on list? (*):yes
Submitted:2/14/2020 19:57:07 CDT
Last modified:2/14/2020 21:20:21 CDT
Database id:130518
Status Flags:TrialDiv
Score (*):44.3245 (normalized score 1.0866)

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_id130518
person_id9
machineUsing: Xeon (pool) 4c+4c 3.5GHz
whatprime
notesCommand: /home/caldwell/clientpool/1/pfgw64 -t -q"5405*2^1566119+1" 2>&1 PFGW Version 4.0.1.64BIT.20191203.x86_Dev [GWNUM 29.8] Primality testing 5405*2^1566119+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 3 Calling Brillhart-Lehmer-Selfridge with factored part 100.00% 5405*2^1566119+1 is prime! (1093.7364s+0.0004s) [Elapsed time: 18.23 minutes]
modified2020-07-07 17:30:10
created2020-02-14 20:33:01
id176204

Query times: 0.0016 seconds to select prime, 0.0007 seconds to seek comments.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.