U(2325, - 1, 7561)
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: | U(2325, - 1, 7561) |
|---|---|
| Verification status (*): | PRP |
| Official Comment (*): | Generalized Lucas number |
| Unofficial Comments: | This prime has 1 user comment below. |
| Proof-code(s): (*): | x20 : Irvine, Broadhurst, Water |
| Decimal Digits: | 25451 (log10 is 25450.158163927) |
| Rank (*): | 71918 (digit rank is 1) |
| Entrance Rank (*): | 54018 |
| Currently on list? (*): | yes |
| Submitted: | 10/4/2013 20:37:18 UTC |
| Last modified: | 5/20/2023 20:59:19 UTC |
| Database id: | 115822 |
| Status Flags: | Verify |
| Score (*): | 35.3314 (normalized score 0) |
Archival tags:
There are certain forms classed as archivable: these prime may (at times) remain on this list even if they do not make the Top 5000 proper. Such primes are tracked with archival tags.
- Generalized Lucas Number (archivable *)
- Prime on list: yes, rank 13
Subcategory: "Generalized Lucas Number"
(archival tag id 217259, tag last modified 2023-10-24 02:37:13)
User comments about this prime (disclaimer):
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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 115822 person_id 9 machine Ditto P4 P4 what prp notes Command: /home/ditto/client/pfgw -tc -q"lucasU(2325,-1,7561)" 2>&1 PFGW Version 3.4.5.32BIT.20110215.x86_Dev [GWNUM 26.5] Primality testing lucasU(2325,-1,7561) [N-1/N+1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 7 Running N+1 test using discriminant 29, base 1+sqrt(29) Calling N-1 BLS with factored part 0.95% and helper 0.22% (3.07% proof) lucasU(2325,-1,7561) is Fermat and Lucas PRP! (237.9567s+0.0042s) [Elapsed time: 3.97 minutes] modified 2020-07-07 22:30:18 created 2013-10-04 20:38:01 id 161320
Query times: 0.0002 seconds to select prime, 0.0007 seconds to seek comments.
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