New AP12 record
- According to Jens Andersen's page
the remarkable collection of records he set for AP9 thru AP19 just over a year ago, as detailed in his post
His AP12 record was:-
AP12: (8986417 + 30820926*n)*157#+1, n=0..11 (71 digits)
Here is a modest improvement:-
AP12: (30150295 + 3538849*n)*173#+1, n=0..11 (77 digits)
All 12 PRPs have been proven prime with PFGW (-tc option).
I PRP'ed 100 million candidates with PFGW, which generated 5,345,174 PRPs.
I then searched for AP's with an efficient Pascal program.
Each of these operations took less than a day at 2.08GHz.
So, as Jens remarked in his post, this (like some other of the APn records) is quite soft.
Come on, people!
- Mike Oakes wrote:
> AP12: (30150295 + 3538849*n)*173#+1, n=0..11 (77 digits)Congrats. I wondered when somebody would look at these records.
They took less than a GHz month.
http://hjem.get2net.dk/jka/math/aprecords.htm is updated.
Jens Kruse Andersen