255 · 27139 + 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:255 · 27139 + 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):D : Dubner, Cruncher
Decimal Digits:2152   (log10 is 2151.4596792256)
Rank (*):104067 (digit rank is 4)
Entrance Rank (*):2058
Currently on list? (*):no
Submitted:1/1/1994 05:59:59 UTC
Last modified:3/11/2023 15:54:10 UTC
Removed (*):5/2/1996 04:59:59 UTC
Database id:34086
Status Flags:none
Score (*):27.6648 (normalized score 0)

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_id34086
person_id9
machineLinux PII 200
whatprime
notesPFGW Version 1.1 for Pentium and compatibles Running N-1 test using base 7 Primality testing 255*2^7139+1 [N-1, Brillhart-Lehmer-Selfridge] Calling Brillhart-Lehmer-Selfridge with factored part 99.90% 255*2^7139+1 is prime! (4.990000 seconds)
modified2003-03-25 17:26:57
created2002-12-06 11:41:35
id21288

Query times: 0.0002 seconds to select prime, 0.0002 seconds to seek comments.
Printed from the PrimePages <t5k.org> © Reginald McLean.