At this site we maintain a list of the 5000 Largest Known Primes which is updated hourly. This list is the most important databases at The Prime Pages: a collection of research, records and results all about prime numbers. This page summarizes our information about one of these primes.
This prime's information:
|Description:||3 · 211731850 - 1|
|Verification status (*):||Proven|
|Unofficial Comments:||This prime has 1 user comment below.|
|Proof-code(s): (*):||L4103 : Klopffleisch, Srsieve, PrimeGrid, LLR|
|Decimal Digits:||3531640 (log10 is 3531639.23175173)|
|Rank (*):||25 (digit rank is 1)|
|Entrance Rank (*):||12|
|Currently on list? (*):||short|
|Submitted:||3/18/2015 11:05:59 CDT|
|Last modified:||3/18/2015 22:20:19 CDT|
|Score (*):||50.5009 (normalized score 641.117)|
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.
|machine||Using: Xeon 4c+4c 3.5GHz|
|notes||Command: /home/caldwell/client/llr.pl 3*2^11731850-1 2>&1|
Starting Lucas Lehmer Riesel prime test of 3*2^11731850-1
Using AVX FFT length 640K, Pass1=512, Pass2=1280
V1 = 5 ; Computing U0...
V1 = 5 ; Computing U0...done.Starting Lucas-Lehmer loop...
3*2^11731850-1 is prime! (3531640 decimal digits) Time : 38994.060 sec.
[Elapsed time: 10.83 hours]
Query times: 0.0002 seconds to select prime, 0.0002 seconds to seek comments.