268920265536 + 1
|Description:||268920265536 + 1|
|Verification status (*):||Proven|
|Official Comment (*):||Generalized Fermat|
|Proof-code(s): (*):||L4214 : Haller, GFNSvCUDA, GeneFer, AthGFNSieve, PrimeGrid, LLR|
|Decimal Digits:||421372 (log10 is 421371.80081843)|
|Rank (*):||7997 (digit rank is 1)|
|Entrance Rank (*):||2059|
|Currently on list? (*):||no|
|Submitted:||11/13/2015 06:49:02 CDT|
|Last modified:||11/13/2015 08:20:37 CDT|
|Removed (*):||3/31/2019 03:43:11 CDT|
|Score (*):||43.9795 (normalized score 0.6389)|
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 120553 person_id 9 machine Using: Xeon 4c+4c 3.5GHz what prime notes Command: /home/caldwell/client/pfgw/pfgw64 -t -q"2689202^65536+1" 2>&1 PFGW Version 188.8.131.52BIT.20130722.x86_Dev [GWNUM 27.11] Primality testing 2689202^65536+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 3 Calling Brillhart-Lehmer-Selfridge with factored part 95.32% 2689202^65536+1 is prime! (3734.3644s+0.0124s) [Elapsed time: 62.23 minutes] modified 2020-07-07 17:30:17 created 2015-11-13 06:51:01 id 166182
Query times: 0.0002 seconds to select prime, 0.0003 seconds to seek comments.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.