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2618163402417 · 21290000 - 1
|Description:||2618163402417 · 21290000 - 1|
|Verification status (*):||Proven|
|Official Comment (*):||Sophie Germain (p)|
|Unofficial Comments:||This prime has 2 user comments below.|
|Proof-code(s): (*):||L927 : Brown1, TwinGen, PrimeGrid, LLR|
|Decimal Digits:||388342 (log10 is 388341.112403283)|
|Rank (*):||10173 (digit rank is 939)|
|Entrance Rank (*):||3747|
|Currently on list? (*):||short|
|Submitted:||2/29/2016 08:11:16 CDT|
|Last modified:||2/29/2016 09:24:37 CDT|
|Score (*):||43.7286 (normalized score 0.5288)|
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):
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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 121330 person_id 9 machine Using: Xeon 4c+4c 3.5GHz what prime notes Command: /home/caldwell/client/llr.pl 2618163402417*2^1290000-1 2>&1 Starting Lucas Lehmer Riesel prime test of 2618163402417*2^1290000-1 Using zero-padded AVX FFT length 128K, Pass1=128, Pass2=1K V1 = 5 ; Computing U0... V1 = 5 ; Computing U0...done.Starting Lucas-Lehmer loop... 2618163402417*2^1290000-1 is prime! (388342 decimal digits) Time : 783.407 sec. [Elapsed time: 13.07 minutes] modified 2020-07-07 17:30:16 created 2016-02-29 08:40:05 id 166964
Query times: 0.0005 seconds to select prime, 0.0003 seconds to seek comments.
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