437960 · 31313880 + 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: | 437960 · 31313880 + 1 |
|---|---|
| Verification status (*): | Proven |
| Official Comment (*): | Generalized Cullen |
| Unofficial Comments: | This prime has 1 user comment below. |
| Proof-code(s): (*): | L2777 : Ritschel, Gcwsieve, TOPS, LLR |
| Decimal Digits: | 626886 (log10 is 626885.71558552) |
| Rank (*): | 4934 (digit rank is 1) |
| Entrance Rank (*): | 155 |
| Currently on list? (*): | yes |
| Submitted: | 11/25/2012 20:17:24 UTC |
| Last modified: | 3/11/2023 15:54:10 UTC |
| Database id: | 110155 |
| Status Flags: | none |
| Score (*): | 45.1996 (normalized score 1.0345) |
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 Cullen (archivable *)
- Prime on list: no, rank 35
Subcategory: "Generalized Cullen"
(archival tag id 214685, tag last modified 2024-08-17 05:37:11)
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.
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 110155 person_id 9 machine RedHat P4 P4 what trial_divided notes Command: /home/caldwell/client/TrialDiv/TrialDiv -q 437960 3 1313880 1 2>&1 [Elapsed time: 9.798 seconds] modified 2020-07-07 22:30:23 created 2012-11-25 20:18:01 id 150295
field value prime_id 110155 person_id 9 machine RedHat Virtual STEM Server what prime notes Command: /home/caldwell/client/pfgw -t -q"437960*3^1313880+1" 2>&1 PFGW Version 3.3.4.20100405.x86_Stable [GWNUM 25.14] Primality testing 437960*3^1313880+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 7 Calling Brillhart-Lehmer-Selfridge with factored part 100.00% 437960*3^1313880+1 is prime! (7519.8078s+0.2159s) [Elapsed time: 2.09 hours] modified 2020-07-07 22:30:23 created 2012-11-25 20:22:43 id 150296
Query times: 0.0002 seconds to select prime, 0.0003 seconds to seek comments.
Printed from the PrimePages <t5k.org> © Reginald McLean.