10490030 + 10309648 + 12345678987654321 · 10245007 + 10180382 + 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:10490030 + 10309648 + 12345678987654321 · 10245007 + 10180382 + 1
Verification status (*):Proven
Official Comment (*):Palindrome
Unofficial Comments:This prime has 1 user comment below.
Proof-code(s): (*):p363 : Batalov, OpenPFGW
Decimal Digits:490031   (log10 is 490030)
Rank (*):10559 (digit rank is 1)
Entrance Rank (*):10532
Currently on list? (*):yes
Submitted:12/8/2024 20:08:40 UTC
Last modified:12/9/2024 16:37:16 UTC
Database id:138766
Status Flags:none
Score (*):44.4432 (normalized score 0.4862)

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.
Palindrome (archivable *)
Prime on list: yes, rank 9
Subcategory: "Palindrome"
(archival tag id 229781, tag last modified 2024-12-09 16:37:19)

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.

Serge Batalov writes (8 Dec 2024):  (report abuse)
This is a palindrome prime with every decimal digit used (0 through 9).
Shorter notation: 12345678987654321 = 1111111112

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_id138766
person_id9
machineUsing: Digital Ocean Droplet
whatprime
notesCommand: /var/www/clientpool/1/pfgw64 -V -f -t -q"10^490030+10^309648+12345678987654321*10^245007+10^180382+1" >command_output 2>&1
PFGW Version 4.0.4.64BIT.20221214.x86_Dev [GWNUM 30.11]
Primality testing 10^490030+10^309648+12345678987654321*10^245007+10^180382+1 [N-1, Brillhart-Lehmer-Selfridge]
trial


Running N-1 test using base 13
Generic modular reduction using generic reduction AVX-512 FFT length 192K, Pass1=192, Pass2=1K, clm=1 on A 1627845-bit number
Calling Brillhart-Lehmer-Selfridge with factored part 36.81%


10^490030+10^309648+12345678987654321*10^245007+10^180382+1 is prime! (4579.6210s+0.0069s)
[Elapsed time: 76.38 minutes]
modified2024-12-09 16:14:19
created2024-12-09 14:57:56
id184856

Query times: 0.0002 seconds to select prime, 0.0003 seconds to seek comments.
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