9935 · 26603610 - 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:9935 · 26603610 - 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):L4965 : Propper, LLR
Decimal Digits:1987889   (log10 is 1987888.6868345)
Rank (*):270 (digit rank is 1)
Entrance Rank (*):220
Currently on list? (*):short
Submitted:3/12/2023 21:02:09 UTC
Last modified:5/20/2023 20:59:19 UTC
Database id:135771
Status Flags:none
Score (*):48.74 (normalized score 43.5129)

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.
fieldvalue
prime_id135771
person_id9
machineUsing: Digital Ocean Droplet
whatprime
notesCommand: /var/www/clientpool/1/pfgw64 -tp -q"9935*2^6603610-1" 2>&1
PFGW Version 4.0.1.64BIT.20191203.x86_Dev [GWNUM 29.8]
Primality testing 9935*2^6603610-1 [N+1, Brillhart-Lehmer-Selfridge]
Running N+1 test using discriminant 3, base 1+sqrt(3)
Detected in MAXERR>0.45 (round off check) in Exponentiator::Iterate
Iteration: 21/6603625 ERROR: ROUND OFF 0.49912>0.45
(Test aborted, try again using the -a1 switch)
Running N+1 test using discriminant 3, base 1+sqrt(3)
Calling Brillhart-Lehmer-Selfridge with factored part 100.00%


9935*2^6603610-1 is prime! (80530.0321s+0.0030s)
[Elapsed time: 22.37 hours]
modified2023-03-15 09:21:06
created2023-03-14 10:58:56
id181590

Query times: 0.0002 seconds to select prime, 0.0003 seconds to seek comments.
Printed from the PrimePages <t5k.org> © Reginald McLean.