75 · 24940218 + 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:75 · 24940218 + 1
Verification status (*):Proven
Official Comment (*):Divides GF(4940214,12)
Unofficial Comments:This prime has 1 user comment below.
Proof-code(s): (*):L5517 : Cavecchia, LLR2, PSieve, Srsieve, PrimeGrid, LLR
Decimal Digits:1487156   (log10 is 1487155.6781804)
Rank (*):517 (digit rank is 1)
Entrance Rank (*):478
Currently on list? (*):short
Submitted:4/6/2024 17:57:10 UTC
Last modified:4/7/2024 12:37:26 UTC
Database id:137939
Status Flags:none
Score (*):47.8503 (normalized score 16.7291)

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 Fermat Divisors (bases 3,5,6,10,12) (archivable *)
Prime on list: yes, rank 10, weight 52.167852502946
Subcategory: "Divides GF(*,12)"
(archival tag id 229483, tag last modified 2024-07-09 23:37:24)

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.

PrimeGrid writes (6 Apr 2024):  (report abuse)
Also divides xGF(4940217,11,6).

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_id137939
person_id9
machineUsing: Digital Ocean Droplet
whatprime
notesCommand: /var/www/clientpool/1/pfgw64 -V -f -t -q"75*2^4940218+1" >command_output 2>&1
PFGW Version 4.0.4.64BIT.20221214.x86_Dev [GWNUM 30.11]
Primality testing 75*2^4940218+1 [N-1, Brillhart-Lehmer-Selfridge]
trial


Running N-1 test using base 11
Special modular reduction using all-complex AVX-512 FFT length 300K, Pass1=960, Pass2=320, clm=1 on 75*2^4940218+1
Calling Brillhart-Lehmer-Selfridge with factored part 100.00%


75*2^4940218+1 is prime! (8217.7817s+0.0022s)
[Elapsed time: 2.28 hours]
modified2024-04-07 12:28:16
created2024-04-07 10:11:16
id183781

Query times: 0.0002 seconds to select prime, 0.0004 seconds to seek comments.
Printed from the PrimePages <t5k.org> © Reginald McLean.