109395 · 2105545 - 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:109395 · 2105545 - 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):g127 : Andrews, Proth.exe
Decimal Digits:31778   (log10 is 31777.249889828)
Rank (*):67744 (digit rank is 1)
Entrance Rank (*):3166
Currently on list? (*):no
Submitted:6/20/2002 10:54:38 UTC
Last modified:3/11/2023 15:54:10 UTC
Removed (*):1/23/2003 08:44:31 UTC
Database id:4070
Status Flags:none
Score (*):36.0175 (normalized score 0.0001)

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_id4070
person_id9
machineWindows XP P4 1.8GHz
whatprime
notesPrimality testing 109395*2^105545-1 [N+1, Brillhart-Lehmer-Selfridge] Calling Brillhart-Lehmer-Selfridge with factored part 99.98% 109395*2^105545-1 is prime! (367.735000 seconds) PFGW Version 1.1 for Windows Running N+1 test using discriminant 7, base 1+sqrt(7)
modified2003-03-25 17:24:47
created2002-12-16 02:46:15
id42616

Query times: 0.0004 seconds to select prime, 0.0005 seconds to seek comments.
Printed from the PrimePages <t5k.org> © Reginald McLean.