812 · 10207838 - 1
At this site we maintain a list of the 5000 Largest Known Primes which is updated hourly. This list is the most important PrimePages database: 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: | 812 · 10207838 - 1 |
|---|---|
| Verification status (*): | Proven |
| Official Comment (*): | [none] |
| Proof-code(s): (*): | L1958 : DUrso, Srsieve, NewPGen, OpenPFGW, LLR |
| Decimal Digits: | 207841 (log10 is 207840.90955603) |
| Rank (*): | 31176 (digit rank is 1) |
| Entrance Rank (*): | 4752 |
| Currently on list? (*): | no |
| Submitted: | 12/17/2011 07:32:41 UTC |
| Last modified: | 3/11/2023 15:54:10 UTC |
| Removed (*): | 1/25/2012 15:57:52 UTC |
| Database id: | 103739 |
| Status Flags: | none |
| Score (*): | 41.8066 (normalized score 0.0361) |
Verification data:
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 103739 person_id 9 machine Ditto P4 P4 what trial_divided notes Command: /home/ditto/client/TrialDiv/TrialDiv -q 812 10 207838 -1 2>&1 [Elapsed time: 9.724 seconds] modified 2020-07-07 22:30:29 created 2011-12-17 07:35:01 id 137067
field value prime_id 103739 person_id 9 machine Ditto P4 P4 what prime notes Command: /home/ditto/client/pfgw -tp -q"812*10^207838-1" 2>&1 PFGW Version 3.4.5.32BIT.20110215.x86_Dev [GWNUM 26.5] Primality testing 812*10^207838-1 [N+1, Brillhart-Lehmer-Selfridge] Running N+1 test using discriminant 3, base 1+sqrt(3) Calling Brillhart-Lehmer-Selfridge with factored part 69.90% 812*10^207838-1 is prime! (4831.5438s+0.0090s) [Elapsed time: 80.53 minutes] modified 2020-07-07 22:30:29 created 2011-12-17 07:38:01 id 137068
Query times: 0.0002 seconds to select prime, 0.0003 seconds to seek comments.
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