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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:
field (help) | value |
Description: | 2009 · 2621885 + 1 |
Verification status (*): | Proven |
Official Comment: | |
Proof-code(s): (*): | L1204 : Brown1, PSieve, Srsieve, PrimeGrid, LLR |
Decimal Digits: | 187210 (log10 is 187209.34183343) |
Rank (*): | 28547 (digit rank is 1) |
Entrance Rank (*): | 4797 |
Currently on list? (*): | no |
Submitted: | 2/2/2011 20:33:06 CDT |
Last modified: | 2/2/2011 21:50:26 CDT |
Removed (*): | 2/10/2011 09:53:50 CDT |
Database id: | 97959 |
Status Flags: | none |
Score (*): | 41.4849 (normalized score 0.0752) |
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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 | 97959 |
person_id | 9 |
machine | Ditto P4 P4 |
what | trial_divided |
notes | Command: /home/ditto/client/TrialDiv/TrialDiv -q 2009 2 621885 1 2>&1 [Elapsed time: 10.326 seconds]
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modified | 2011-12-27 16:48:34 |
created | 2011-02-02 20:36:55 |
id | 125294 |
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field | value |
prime_id | 97959 |
person_id | 9 |
machine | RedHat Virtual STEM Server |
what | prime |
notes | Command: /home/caldwell/client/pfgw -t -q"2009*2^621885+1" 2>&1 PFGW Version 3.3.4.20100405.x86_Stable [GWNUM 25.14] Primality testing 2009*2^621885+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 3 Calling Brillhart-Lehmer-Selfridge with factored part 100.00% 2009*2^621885+1 is prime! (473.3229s+0.0007s) [Elapsed time: 7.88 minutes]
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modified | 2011-03-25 10:27:31 |
created | 2011-02-02 21:39:58 |
id | 125310 |
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Query times: 0.0002 seconds to select prime, 0.0002 seconds to seek comments.
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