600921 · 1084191 + 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:600921 · 1084191 + 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):g337 : Hsieh, NewPGen, PRP, Proth.exe
Decimal Digits:84197   (log10 is 84196.778817381)
Rank (*):53392 (digit rank is 1)
Entrance Rank (*):1311
Currently on list? (*):no
Submitted:1/18/2005 11:14:45 UTC
Last modified:3/11/2023 15:54:10 UTC
Removed (*):3/26/2007 13:01:06 UTC
Database id:73181
Status Flags:none
Score (*):39.0242 (normalized score 0.0025)

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_id73181
person_id9
machineWinXP P4 1.8GHz
whatprime
notesCommand: pfgw.exe -n -f -t -q"600921*10^84191+1" 2>&1 PFGW Version 20030811.Win_Dev (Beta 'caveat utilitor') [FFT v22.13 w/P4] trial factoring to 28364320 Running N-1 test using base 7 Primality testing 600921*10^84191+1 [N-1, Brillhart-Lehmer-Selfridge] N-1: 600921*10^84191+1 277500/279697Calling Brillhart-Lehmer-Selfridge with factored part 69.89% 600921*10^84191+1 is prime! (2545.0959s+0.0406s)
modified2020-07-07 22:30:44
created2005-01-18 23:17:48
id78197

Query times: 0.0002 seconds to select prime, 0.0003 seconds to seek comments.
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