This site will be down for maintenance beginning noon CDT (5pm UTC) Wed April 14
193997 · 211452891 + 1
|Description:||193997 · 211452891 + 1|
|Verification status (*):||Proven|
|Official Comment (*):||[none]|
|Unofficial Comments:||This prime has 1 user comment below.|
|Proof-code(s): (*):||L4398 : Greer, Srsieve, PrimeGrid, LLR|
|Decimal Digits:||3447670 (log10 is 3447669.01586506)|
|Rank (*):||45 (digit rank is 1)|
|Entrance Rank (*):||23|
|Currently on list? (*):||short|
|Submitted:||4/3/2018 20:19:27 CDT|
|Last modified:||4/4/2018 20:50:26 CDT|
|Score (*):||50.4272 (normalized score 429.2945)|
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 124564 person_id 9 machine Using: Xeon 4c+4c 3.5GHz what prime notes Command: /home/caldwell/client/pfgw/pfgw64 -t -q"193997*2^11452891+1" 2>&1 PFGW Version 220.127.116.11BIT.20130722.x86_Dev [GWNUM 27.11] Primality testing 193997*2^11452891+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 3 Calling Brillhart-Lehmer-Selfridge with factored part 100.00% 193997*2^11452891+1 is prime! (87794.5432s+0.0037s) [Elapsed time: 24.39 hours] modified 2020-07-07 17:30:15 created 2018-04-03 20:21:01 id 170229
Query times: 0.0004 seconds to select prime, 0.0008 seconds to seek comments.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.