(263488719 + 1)2 - 2
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: | (263488719 + 1)2 - 2 |
|---|---|
| Verification status (*): | Proven |
| Official Comment (*): | [none] |
| Proof-code(s): (*): | p432 : Rodermond, Cksieve, OpenPFGW |
| Decimal Digits: | 606948 (log10 is 606947.2211083) |
| Rank (*): | 5052 (digit rank is 1) |
| Entrance Rank (*): | 3991 |
| Currently on list? (*): | no |
| Submitted: | 5/18/2023 11:23:19 UTC |
| Last modified: | 5/20/2023 20:59:19 UTC |
| Removed (*): | 10/26/2024 13:14:04 UTC |
| Database id: | 136056 |
| Status Flags: | none |
| Score (*): | 45.1004 (normalized score 0.9705) |
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 136056 person_id 9 machine Using: Digital Ocean Droplet what prime notes Command: /var/www/clientpool/1/pfgw64 -V -tc -q"(2634^88719+1)^2-2" 2>&1
PFGW Version 4.0.4.64BIT.20221214.x86_Dev [GWNUM 30.11]
Primality testing (2634^88719+1)^2-2 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 5
Generic modular reduction using generic reduction AVX-512 FFT length 200K, Pass1=640, Pass2=320, clm=1 on A 2016236-bit number
Running N+1 test using discriminant 13, base 1+sqrt(13)
Generic modular reduction using generic reduction AVX-512 FFT length 200K, Pass1=640, Pass2=320, clm=1 on A 2016236-bit number
Detected in MAXERR>0.45 (round off check) in Exponentiator::Iterate
Iteration: 39/2016253 ERROR: ROUND OFF 0.5>0.45
(Test aborted, try again using the -a1 switch)
Running N+1 test using discriminant 13, base 1+sqrt(13)
Generic modular reduction using generic reduction AVX-512 FFT length 240K, Pass1=640, Pass2=384, clm=1 on A 2016236-bit number
Running N+1 test using discriminant 13, base 2+sqrt(13)
Generic modular reduction using generic reduction AVX-512 FFT length 200K, Pass1=640, Pass2=320, clm=1 on A 2016236-bit number
Calling N+1 BLS with factored part 50.00% and helper 0.00% (150.00% proof)
(2634^88719+1)^2-2 is prime! (32266.2942s+0.0084s)
[Elapsed time: 8.96 hours]modified 2023-05-18 20:21:48 created 2023-05-18 11:24:02 id 181886
Query times: 0.0002 seconds to select prime, 0.0003 seconds to seek comments.
Printed from the PrimePages <t5k.org> © Reginald McLean.