38 · 380495986 - 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: | 38 · 380495986 - 1 |
|---|---|
| Verification status (*): | Proven |
| Official Comment (*): | [none] |
| Proof-code(s): (*): | L5410 : Anonymous, Srsieve, CRUS, LLR |
| Decimal Digits: | 1279539 (log10 is 1279538.1267352) |
| Rank (*): | 653 (digit rank is 1) |
| Entrance Rank (*): | 538 |
| Currently on list? (*): | short |
| Submitted: | 11/29/2023 16:45:48 UTC |
| Last modified: | 11/30/2023 08:37:17 UTC |
| Database id: | 136700 |
| Status Flags: | none |
| Score (*): | 47.3892 (normalized score 11.0702) |
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 136700 person_id 9 machine Using: Digital Ocean Droplet what prime notes Command: /var/www/clientpool/1/pfgw64 -V -f -tp -q"38*380^495986-1" >command_output 2>&1
PFGW Version 4.0.4.64BIT.20221214.x86_Dev [GWNUM 30.11]
Primality testing 38*380^495986-1 [N+1, Brillhart-Lehmer-Selfridge]
trial
Running N+1 test using discriminant 3, base 1+sqrt(3)
Special modular reduction using AVX-512 FFT length 420K, Pass1=960, Pass2=448, clm=1 on 38*380^495986-1
Detected in MAXERR>0.45 (round off check) in Exponentiator::Iterate
Iteration: 697/4250535 ERROR: ROUND OFF 0.49014>0.45
(Test aborted, try again using the -a1 switch)
Running N+1 test using discriminant 3, base 1+sqrt(3)
Special modular reduction using AVX-512 FFT length 432K, Pass1=1152, Pass2=384, clm=1 on 38*380^495986-1
Calling Brillhart-Lehmer-Selfridge with factored part 49.57%
38*380^495986-1 is prime! (56395.5905s+0.0152s)
[Elapsed time: 15.67 hours]modified 2023-11-30 08:25:58 created 2023-11-29 16:46:01 id 182535
Query times: 0.0002 seconds to select prime, 0.0002 seconds to seek comments.
Printed from the PrimePages <t5k.org> © Reginald McLean.