63 · 28741225 + 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:63 · 28741225 + 1
Verification status (*):Proven
Official Comment (*):[none]
Unofficial Comments:This prime has 1 user comment below.
Proof-code(s): (*):A2 : Propper, Srsieve, PRST
Decimal Digits:2631373   (log10 is 2631372.7231884)
Rank (*):193 (digit rank is 1)
Entrance Rank (*):160
Currently on list? (*):yes
Submitted:5/6/2024 11:52:03 UTC
Last modified:5/6/2024 20:37:21 UTC
Database id:138072
Status Flags:none
Score (*):49.5995 (normalized score 87.5519)

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.

Ryan Propper writes (6 May 2024):  (report abuse)
Divides GF(8741223,8)

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_id138072
person_id9
machineUsing: Digital Ocean Droplet
whatprime
notesCommand: /var/www/clientpool/1/pfgw64 -V -f -t -q"63*2^8741225+1" >command_output 2>&1
PFGW Version 4.0.4.64BIT.20221214.x86_Dev [GWNUM 30.11]
Primality testing 63*2^8741225+1 [N-1, Brillhart-Lehmer-Selfridge]
trial


Running N-1 test using base 5
Special modular reduction using all-complex AVX-512 FFT length 560K, Pass1=1280, Pass2=448, clm=1 on 63*2^8741225+1
Calling Brillhart-Lehmer-Selfridge with factored part 100.00%


63*2^8741225+1 is prime! (30540.8579s+0.0039s)
[Elapsed time: 8.49 hours]
modified2024-05-06 20:37:13
created2024-05-06 12:08:07
id183914

Query times: 0.0004 seconds to select prime, 0.0005 seconds to seek comments.
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