255 · 2161486 + 1
|Description:||255 · 2161486 + 1|
|Verification status (*):||Proven|
|Official Comment (*):||Divides GF(161484,5)|
|Proof-code(s): (*):||g76 : DavalDavis, Proth.exe|
|Decimal Digits:||48615 (log10 is 48614.536419974)|
|Rank (*):||56771 (digit rank is 1)|
|Entrance Rank (*):||131|
|Currently on list? (*):||no|
|Submitted:||6/29/2000 17:35:43 CDT|
|Last modified:||6/29/2000 17:35:43 CDT|
|Score (*):||37.3303 (normalized score 0.0008)|
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 1081 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 7 Primality testing 255*2^161486+1 [N-1, Brillhart-Lehmer-Selfridge] Calling Brillhart-Lehmer-Selfridge with factored part 100.00% 255*2^161486+1 is prime! (305.669000 seconds) modified 2003-03-25 11:21:54 created 2003-01-19 21:49:29 id 66295
Query times: 0.0005 seconds to select prime, 0.0009 seconds to seek comments.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.