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6721751465536 + 1
|Description:||6721751465536 + 1|
|Verification status (*):||Proven|
|Official Comment (*):||Generalized Fermat|
|Proof-code(s): (*):||L4984 : Hemsley, GFNSvCUDA, GeneFer, AthGFNSieve, PrimeGrid, LLR|
|Decimal Digits:||512982 (log10 is 512981.889601105)|
|Rank (*):||3079 (digit rank is 1)|
|Entrance Rank (*):||2430|
|Currently on list? (*):||yes|
|Submitted:||10/2/2019 10:10:09 CDT|
|Last modified:||10/2/2019 12:20:12 CDT|
|Score (*):||44.5838 (normalized score 1.4771)|
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 129982 person_id 9 machine Using: Xeon (pool) 4c+4c 3.5GHz what prime notes Command: /home/caldwell/clientpool/1/pfgw64 -t -q"67217514^65536+1" 2>&1 PFGW Version 188.8.131.52BIT.20130722.x86_Dev [GWNUM 27.11] Primality testing 67217514^65536+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 5 Calling Brillhart-Lehmer-Selfridge with factored part 33.37% 67217514^65536+1 is prime! (6468.5907s+0.0056s) [Elapsed time: 1.80 hours] modified 2020-07-07 17:30:11 created 2019-10-02 10:13:01 id 175667
Query times: 0.0005 seconds to select prime, 0.0006 seconds to seek comments.
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