8311875 · 273163 - 1
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At this site we maintain a list of the 5000 Largest Known Primes which is updated hourly. This list is the most important databases at The Prime Pages: 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:

field (help)value
Description:8311875 · 273163 - 1
Verification status (*):Proven
Official Comment:
Proof-code(s): (*):g73 : Nikkel, Proth.exe
Decimal Digits:22032   (log10 is 22031.1772717672)
Rank (*):62904 (digit rank is 2)
Entrance Rank (*):1275
Currently on list? (*):no
Submitted:6/19/2000 17:19:38 CDT
Last modified:6/19/2000 17:19:38 CDT
Removed (*):7/30/2001 15:56:37 CDT
Database id:8097
Status Flags:none
Score (*):34.8854 (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_id8097
person_id9
machineWindows XP P4 1.8GHz
whatprime
notesPrimality testing 8311875*2^73163-1 [N+1, Brillhart-Lehmer-Selfridge] Calling Brillhart-Lehmer-Selfridge with factored part 99.97% 8311875*2^73163-1 is prime! (177.797000 seconds) PFGW Version 1.1 for Windows Running N+1 test using discriminant 29, base 1+sqrt(29)
modified2003-03-25 11:24:59
created2002-12-13 04:02:01
id39686

Query times: 0.0005 seconds to select prime, 0.0006 seconds to seek comments.