277714 · 5146279 - 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:277714 · 5146279 - 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):p214 : Bird, Srsieve, SierpinskiRiesel, PRP, OpenPFGW
Decimal Digits:102251   (log10 is 102250.07686204)
Rank (*):42925 (digit rank is 1)
Entrance Rank (*):2394
Currently on list? (*):no
Submitted:11/19/2006 11:12:22 CDT
Last modified:11/19/2006 12:50:31 CDT
Removed (*):8/7/2008 18:22:15 CDT
Database id:78874
Status Flags:none
Score (*):39.6228 (normalized score 0.0083)

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.
machineRedHat P4 P4
notesCommand: /home/caldwell/client/TrialDiv/TrialDiv -q 277714 5 146279 -1 2>&1 [Elapsed time: 9.468 seconds]
modified2020-07-07 17:30:42
created2006-11-19 11:22:01

machineRedHat P4 P4
notesCommand: /home/caldwell/client/pfgw -tp -q"277714*5^146279-1" 2>&1 PFGW Version 20031027.x86_Dev (Beta 'caveat utilitor') [FFT v22.13 w/P4] Primality testing 277714*5^146279-1 [N+1, Brillhart-Lehmer-Selfridge] Running N+1 test using discriminant 13, base 10+sqrt(13) Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(49152,20) to FFT(49152,19) Reduced from FFT(49152,19) to FFT(49152,18) Reduced from FFT(49152,18) to FFT(49152,17) Reduced from FFT(49152,17) to FFT(49152,16) 679352 bit request FFT size=(49152,16) Calling Brillhart-Lehmer-Selfridge with factored part 99.99% 277714*5^146279-1 is prime! (5250.0629s+0.0172s) [Elapsed time: 5250 seconds]
modified2020-07-07 17:30:42
created2006-11-19 11:23:01

Query times: 0.0002 seconds to select prime, 0.0003 seconds to seek comments.
Printed from the PrimePages <primes.utm.edu> © Chris Caldwell.