(282939 - 1)/883323903012540278033571819073
|Description:||(282939 - 1)/883323903012540278033571819073|
|Verification status (*):||PRP|
|Official Comment (*):||Mersenne cofactor, ECPP|
|Unofficial Comments:||This prime has 1 user comment below.|
|Proof-code(s): (*):||c84 : Underwood, Primo|
|Decimal Digits:||24938 (log10 is 24937.180690392)|
|Rank (*):||66185 (digit rank is 1)|
|Entrance Rank (*):||65697|
|Currently on list? (*):||short|
|Submitted:||2/24/2021 00:28:32 CDT|
|Last modified:||2/24/2021 00:50:25 CDT|
|Status Flags:||Verify, TrialDiv|
|Score (*):||35.2685 (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.
- Elliptic Curve Primality Proof (archivable *)
- Prime on list: yes, rank 18
(archival tag id 226023, tag last modified 2021-05-04 10:20:37)
- Mersenne cofactor (archivable *)
- Prime on list: yes, rank 2
Subcategory: "Mersenne cofactor"
(archival tag id 226024, tag last modified 2021-02-24 00:50:28)
User comments about this prime (disclaimer):
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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 132049 person_id 9 machine Using: Xeon (pool) 4c+4c 3.5GHz what prp notes Command: /home/caldwell/clientpool/1/pfgw64 -tc -q"(2^82939-1)/883323903012540278033571819073" 2>&1 PFGW Version 188.8.131.52BIT.20191203.x86_Dev [GWNUM 29.8] Primality testing (2^82939-1)/8833239030...3571819073 [N-1/N+1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 3 Running N-1 test using base 7 Running N+1 test using discriminant 17, base 1+sqrt(17) Calling N-1 BLS with factored part 0.06% and helper 0.02% (0.19% proof) (2^82939-1)/8833239030...3571819073 is Fermat and Lucas PRP! (53.3501s+0.0002s) [Elapsed time: 54.00 seconds] modified 2021-04-20 17:39:24 created 2021-02-24 00:31:01 id 177748
Query times: 0.0002 seconds to select prime, 0.0003 seconds to seek comments.
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