9 · 247003 + 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:9 · 247003 + 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):Y : Young
Decimal Digits:14151   (log10 is 14150.267128704)
Rank (*):74288 (digit rank is 1)
Entrance Rank (*):16
Currently on list? (*):no
Last modified:10/1/1993
Removed (*):8/14/2000 18:06:11 CDT
Database id:13256
Status Flags:none
Score (*):33.5155 (normalized score 0)

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.
machineLinux PII 200
notesPFGW Version 20020311.x86_Dev (Alpha software, 'caveat utilitor') Running N-1 test using base 5 Primality testing 9*2^47003+1 [N-1, Brillhart-Lehmer-Selfridge] Calling Brillhart-Lehmer-Selfridge with factored part 99.99% 9*2^47003+1 is prime! (216.340000 seconds)
modified2003-03-25 11:24:31
created2002-12-21 05:58:46

Query times: 0.0002 seconds to select prime, 0.0002 seconds to seek comments.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.