31425787101 · 2333333 - 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:31425787101 · 2333333 - 1
Verification status (*):Proven
Official Comment (*):[none]
Proof-code(s): (*):L271 : Klahn, NewPGen, PrimeGrid, TPS, LLR
Decimal Digits:100354   (log10 is 100353.72883083)
Rank (*):48840 (digit rank is 501)
Entrance Rank (*):4507
Currently on list? (*):no
Submitted:1/31/2008 22:10:46 UTC
Last modified:3/11/2023 15:54:10 UTC
Removed (*):3/9/2008 20:58:52 UTC
Database id:83845
Status Flags:none
Score (*):39.5651 (normalized score 0.0045)

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_id83845
person_id9
machineDitto P4 P4
whatprime
notesCommand: /home/ditto/client/llr.pl 31425787101*2^333333-1 2>&1 Starting Lucas Lehmer Riesel prime test of 31425787101*2^333333-1 Using Zero Padded IBDWT : Mersenne fftlen = 16384, Used fftlen = 32768 V1 = 5 ; Computing U0... V1 = 5 ; Computing U0...done. Starting Lucas-Lehmer loop... *2^333333-1 is prime! Time : 523.060 sec. [Elapsed time: 8.72 minutes]
modified2020-07-07 22:30:40
created2008-01-31 22:19:05
id96798

fieldvalue
prime_id83845
person_id9
machineRedHat P4 P4
whattrial_divided
notesCommand: /home/caldwell/client/TrialDiv/TrialDiv -q 31425787101 2 333333 -1 2>&1 [Elapsed time: 9.492 seconds]
modified2020-07-07 22:30:40
created2008-01-31 22:23:50
id96810

Query times: 0.0003 seconds to select prime, 0.0004 seconds to seek comments.
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