Already Deleted: 155 · 267973 + 1This number has been deleted (possibly too small when submitted).
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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 PrimePages database: a collection of research, records and results all about prime numbers. This page summarizes our information about one of these primes.
|Description:||155 · 267973 + 1|
|Verification status (*):||Proven|
|Official Comment (*):||Duplicate--but how?|
|Proof-code(s): (*):||g1 : |
Warning! This is the code this prime was submitted with, but the current owners of the code may have changed. Do not assume this entry was submitted by the owners of this code.
|Decimal Digits:||20465 (log10 is 20464.102226966)|
|Rank (*):||39275 (digit rank is 5)|
|Entrance Rank (*):||1758|
|Currently on list? (*):||no|
|Submitted:||8/23/2000 07:09:44 CDT|
|Last modified:||10/17/2010 11:56:51 CDT|
|Removed (*):||6/22/2001 08:12:05 CDT|
|Score (*):||34.6572 (normalized score 0)|
There are certain forms classed as archivable: these prime may (at times) remain on this list even if they do not make the Top 5000 proper. Such primes are tracked with archival tags.
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.
field value prime_id 62875 person_id 9 machine WinXP Athlon 1.3GHz what prime notes PFGW Version 20021217.Win_Dev (Beta 'caveat utilitor') [FFT v22.7 w/P4] Running N-1 test using base 3 Primality testing 155*2^67973+1 [N-1, Brillhart-Lehmer-Selfridge] Calling Brillhart-Lehmer-Selfridge with factored part 99.99% 155*2^67973+1 is prime! (43.752000 seconds) modified 2003-03-25 11:22:47 created 2003-01-07 07:56:42 id 64050