The nth Prime Page
will now find any of the first 2,623,557,157,654,233 primes or
) for x
up to 100,000,000,000,000,000.
At this site we maintain a list of the 5000 Largest Known Primes which is updated hourly. This list is the most important databases at The Prime Pages: 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:||242643801 - 1|
|Verification status (*):||External|
|Official Comment:||Mersenne 46?|
|Unofficial Comments:||This prime has 2 user comments below.|
|Proof-code(s): (*):||G12 : Strindmo, GIMPS, Prime95|
|Decimal Digits:||12837064 (log10 is 12837063.2301257)|
|Rank (*):||4 (digit rank is 1)|
|Entrance Rank (*):||2|
|Currently on list? (*):||short|
|Submitted:||6/13/2009 12:36:33 CDT|
|Last modified:||1/16/2016 08:47:52 CDT|
|Score (*):||54.4506 (normalized score 45341.4576)|
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
- Mersenne (archivable *)
- Prime on list: yes, rank 4
(archival tag id 210459, tag last modified 2016-01-19 07:57:44)
User comments about this prime (disclaimer):
User comments are allowed to convey mathematical information about this number, how it was proven prime.... See our guidelines and restrictions.
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.
|machine||RedHat P4 P4|
|notes||Command: /home/caldwell/client/TrialDiv/TrialDiv -q 1 2 42643801 -1 2>&1|
[Elapsed time: 12.306 seconds]
|notes||The prime was independently verified June 12th by Tony Reix of Bull SAS in Grenoble, France using the Glucas program running on Bull NovaScale HPC servers, one featuring Itanium2 CPUs and another featuring Nehalem EX CPUs.|
Query times: 0.0003 seconds to select prime, 0.0001 seconds to seek comments.