2 · 131528469 + 1
|Description:||2 · 131528469 + 1|
|Verification status (*):||Proven|
|Official Comment (*):||Divides Phi(131^528469,2)|
|Proof-code(s): (*):||L4879 : Propper, Batalov, Srsieve, LLR|
|Decimal Digits:||1118913 (log10 is 1118912.5453739)|
|Rank (*):||304 (digit rank is 1)|
|Entrance Rank (*):||191|
|Currently on list? (*):||short|
|Submitted:||1/26/2019 00:38:51 CDT|
|Last modified:||1/26/2019 02:50:22 CDT|
|Score (*):||46.9777 (normalized score 15.267)|
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 125936 person_id 9 machine Using: Xeon 4c+4c 3.5GHz what prime notes Command: /home/caldwell/client/pfgw/pfgw64 -t -q"2*131^528469+1" 2>&1 PFGW Version 188.8.131.52BIT.20130722.x86_Dev [GWNUM 27.11] Primality testing 2*131^528469+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 5 Calling Brillhart-Lehmer-Selfridge with factored part 100.00% 2*131^528469+1 is prime! (6350.2965s+0.0353s) [Elapsed time: 1.76 hours] modified 2020-07-07 17:30:14 created 2019-01-26 00:41:02 id 171613
Query times: 0.0007 seconds to select prime, 0.0002 seconds to seek comments.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.