66258958955 · 5303# + 1

Previous Next Random

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:	66258958955 · 5303# + 1
Verification status (*):	Proven
Official Comment (*):	Arithmetic progression (7,d=3026809034*5303#)
Proof-code(s): (*):	p406 : DavisK, Luhn, Underwood, NewPGen, PrimeForm_egroup, OpenPFGW
Decimal Digits:	2271 (log₁₀ is 2270.1369435963)
Rank (*):	104298 (digit rank is 2113)
Entrance Rank (*):	92071
Currently on list? (*):	yes
Submitted:	8/11/2019 07:19:28 UTC
Last modified:	5/20/2023 20:59:19 UTC
Database id:	126731
Status Flags:	none
Score (*):	27.8321 (normalized score 0)

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.

Arithmetic Progressions of Primes (archivable class *)
Prime on list: yes, rank 1, weight 49.053383875631
Subcategory: "7/8"
(archival tag id 233837, tag last modified 2025-01-18 22:37:23)

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 126731

person_id 9

machine Using: Xeon 4c+4c 3.5GHz

what prime

notes Command: /home/caldwell/client/pfgw/pfgw64 -t -q"66258958955*5303#+1" 2>&1 PFGW Version 3.7.7.64BIT.20130722.x86_Dev [GWNUM 27.11] Primality testing 66258958955*5303#+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 2 Calling Brillhart-Lehmer-Selfridge with factored part 33.46% 66258958955*5303#+1 is prime! (1.0660s+0.0009s) [Elapsed time: 1.00 seconds]

modified 2020-07-07 22:30:13

created 2019-08-11 07:21:03

id 172411

field	value
prime_id	126731
person_id	9
machine	Using: Xeon 4c+4c 3.5GHz
what	prime
notes	Command: /home/caldwell/client/pfgw/pfgw64 -t -q"662589589555303#+1" 2>&1 PFGW Version 3.7.7.64BIT.20130722.x86_Dev [GWNUM 27.11] Primality testing 662589589555303#+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 2 Calling Brillhart-Lehmer-Selfridge with factored part 33.46% 66258958955*5303#+1 is prime! (1.0660s+0.0009s) [Elapsed time: 1.00 seconds]
modified	2020-07-07 22:30:13
created	2019-08-11 07:21:03
id	172411

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