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U(5239, 1, 7350) - U(5239, 1, 7349)
|Description:||U(5239, 1, 7350) - U(5239, 1, 7349)|
|Verification status (*):||PRP|
|Official Comment (*):||Lehmer number|
|Unofficial Comments:||This prime has 2 user comments below.|
|Proof-code(s): (*):||CH10 : Batalov, Primo, OpenPFGW, CHG|
|Decimal Digits:||27333 (log10 is 27332.756281023)|
|Rank (*):||63964 (digit rank is 1)|
|Entrance Rank (*):||60416|
|Currently on list? (*):||short|
|Submitted:||6/28/2017 15:26:24 CDT|
|Last modified:||6/28/2017 15:50:28 CDT|
|Status Flags:||Verify, TrialDiv|
|Score (*):||35.552 (normalized score 0.0001)|
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.
User comments about this prime (disclaimer):
User comments are allowed to convey mathematical information about this number, how it was proven prime.... See our guidelines and restrictions.
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 123606 person_id 9 machine Using: Xeon 4c+4c 3.5GHz what prp notes Command: /home/caldwell/client/pfgw/pfgw64 -tc -q"lucasU(5239,1,7350)-lucasU(5239,1,7349)" 2>&1 PFGW Version 126.96.36.199BIT.20130722.x86_Dev [GWNUM 27.11] Primality testing lucasU(5239,1,7350)-lucasU(5239,1,7349) [N-1/N+1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 7 Running N-1 test using base 31 Running N+1 test using discriminant 47, base 4+sqrt(47) Calling N-1 BLS with factored part 0.62% and helper 0.39% (2.24% proof) lucasU(5239,1,7350)-lucasU(5239,1,7349) is Fermat and Lucas PRP! (72.0161s+0.0038s) [Elapsed time: 72.00 seconds] modified 2020-07-07 17:30:15 created 2017-06-28 15:31:01 id 169258
Query times: 0.0004 seconds to select prime, 0.0007 seconds to seek comments.
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