(27813121 - 1)/2780
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: | (27813121 - 1)/2780 |
|---|---|
| Verification status (*): | PRP |
| Official Comment (*): | Generalized repunit |
| Proof-code(s): (*): | x14 : Steward, OpenPFGW, Primo |
| Decimal Digits: | 10746 (log10 is 10745.907241449) |
| Rank (*): | 84891 (digit rank is 1) |
| Entrance Rank (*): | 14804 |
| Currently on list? (*): | no |
| Submitted: | 11/19/2001 00:50:10 UTC |
| Last modified: | 3/11/2023 15:54:10 UTC |
| Database id: | 17033 |
| Status Flags: | Verify |
| Score (*): | 32.663 (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 Repunit (archivable *)
- Prime on list: no, rank 88
Subcategory: "Generalized Repunit"
(archival tag id 194172, tag last modified 2025-01-20 23:37:21)
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 17033 person_id 9 machine Linux PII 200 what prp notes PFGW Version 20020311.x86_Dev (Alpha software, 'caveat utilitor') Primality testing 8076839431...4181540732 Running N-1 test using base 43 9297916026...2567747921 [N-1/N+1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 59 Running N+1 test using discriminant 67, base 14+sqrt(67) Calling N-1 BLS with factored part 1.88% and helper 0.00% (5.63% proof) (2781^3121-1)/2780 is Fermat and Lucas PRP! (1946.960000 seconds) modified 2003-03-25 17:22:40 created 2003-01-09 19:04:06 id 64904
Query times: 0.0003 seconds to select prime, 0.0004 seconds to seek comments.
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