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27 · 27963247 + 1
|Description:||27 · 27963247 + 1|
|Verification status (*):||Proven|
|Official Comment (*):||Divides Fermat F(7963245)|
|Unofficial Comments:||This prime has 1 user comment below.|
|Proof-code(s): (*):||L5161 : Greer, LLR2, PSieve, Srsieve, PrimeGrid, LLR|
|Decimal Digits:||2397178 (log10 is 2397177.64124498)|
|Rank (*):||88 (digit rank is 1)|
|Entrance Rank (*):||74|
|Currently on list? (*):||short|
|Submitted:||1/16/2021 08:07:48 CDT|
|Last modified:||1/16/2021 15:20:18 CDT|
|Score (*):||49.3138 (normalized score 141.0036)|
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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 131583 person_id 9 machine Using: Xeon (pool) 4c+4c 3.5GHz what prime notes Command: /home/caldwell/clientpool/1/pfgw64 -t -q"27*2^7963247+1" 2>&1
PFGW Version 22.214.171.124BIT.20191203.x86_Dev [GWNUM 29.8]
Primality testing 27*2^7963247+1 [N-1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 5
Calling Brillhart-Lehmer-Selfridge with factored part 100.00%
27*2^7963247+1 is prime! (23916.2844s+0.0039s)
[Elapsed time: 6.64 hours]
modified 2021-01-16 14:59:38 created 2021-01-16 08:21:01 id 177280
Query times: 0.0004 seconds to select prime, 0.0007 seconds to seek comments.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.