2 · 698898 - 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:2 · 698898 - 1
Verification status (*):Proven
Official Comment:
Proof-code(s): (*):L : Larvala, Lifchitz
Decimal Digits:76958   (log10 is 76957.9033904372)
Rank (*):45280 (digit rank is 1)
Entrance Rank (*):327
Currently on list? (*):no
Submitted:1/8/2003 04:16:36 CDT
Last modified:1/8/2003 04:16:36 CDT
Removed (*):12/11/2006 13:52:52 CDT
Database id:63001
Status Flags:none
Score (*):38.7471 (normalized score 0.006)

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.
machineWinXP P4 1.8GHz
notesPrimality testing 2*6^98898-1 [N+1, Brillhart-Lehmer-Selfridge] Calling Brillhart-Lehmer-Selfridge with factored part 61.31% 2*6^98898-1 is prime! (9155.239000 seconds) PFGW Version 20021217.Win_Dev (Beta 'caveat utilitor') [FFT v22.7 w/P4] Running N+1 test using discriminant 7, base 1+sqrt(7)
modified2003-03-25 11:22:39
created2003-01-09 15:49:43

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