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147 · 2198692 - 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.

Description:147 · 2198692 - 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):L40 : AndersonM, Ksieve, 15k, LLR
Decimal Digits:59815   (log10 is 59814.4192158)
Rank (*):51096 (digit rank is 1)
Entrance Rank (*):2052
Currently on list? (*):no
Submitted:7/1/2004 14:14:45 CDT
Last modified:7/1/2004 14:14:45 CDT
Removed (*):7/18/2005 17:51:53 CDT
Database id:70873
Status Flags:none
Score (*):37.9699 (normalized score 0.0019)

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_id70873
person_id9
machineLinux P4 2.8GHz
whatprime
notesCommand: /home/caldwell/client/llr.pl 147*2^198692-1 2>&1
Starting Lucas Lehmer Riesel prime test of 147*2^198692-1
V1 = 9 ; Computing U0...
Done Computing U0.
Starting Lucas-Lehmer loop...
147*2^198692-1 is prime! Time : 144.397 sec.
modified2004-08-05 12:46:56
created2004-07-01 14:25:14
id75848

Query times: 0.0004 seconds to select prime, 0.0003 seconds to seek comments.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.