- View Source(1600616052+n*52323192)*617#+1 (n=0-9) describes a 265 digit ap10

cheers

Ken

Primality testing (1600616052+0*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]

Running N-1 test using base 2

Calling Brillhart-Lehmer-Selfridge with factored part 34.812%

(1600616052+0*52323192)*617#+1 is prime! (0.0186s+0.0004s)

Primality testing (1600616052+1*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]

Running N-1 test using base 2

Calling Brillhart-Lehmer-Selfridge with factored part 35.040%

(1600616052+1*52323192)*617#+1 is prime! (0.0166s+0.0004s)

Primality testing (1600616052+2*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]

Running N-1 test using base 2

Calling Brillhart-Lehmer-Selfridge with factored part 34.471%

(1600616052+2*52323192)*617#+1 is prime! (0.0193s+0.0005s)

Primality testing (1600616052+3*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]

Running N-1 test using base 2

Calling Brillhart-Lehmer-Selfridge with factored part 35.267%

(1600616052+3*52323192)*617#+1 is prime! (0.0231s+0.0009s)

Primality testing (1600616052+4*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]

Running N-1 test using base 2

Calling Brillhart-Lehmer-Selfridge with factored part 35.267%

(1600616052+4*52323192)*617#+1 is prime! (0.0194s+0.0010s)

Primality testing (1600616052+5*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]

Running N-1 test using base 2

Calling Brillhart-Lehmer-Selfridge with factored part 34.432%

(1600616052+5*52323192)*617#+1 is prime! (0.0183s+0.0009s)

Primality testing (1600616052+6*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]

Running N-1 test using base 2

Calling Brillhart-Lehmer-Selfridge with factored part 34.886%

(1600616052+6*52323192)*617#+1 is prime! (0.0224s+0.0010s)

Primality testing (1600616052+7*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]

Running N-1 test using base 2

Calling Brillhart-Lehmer-Selfridge with factored part 34.659%

(1600616052+7*52323192)*617#+1 is prime! (0.0191s+0.0011s)

Primality testing (1600616052+8*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]

Running N-1 test using base 2

Calling Brillhart-Lehmer-Selfridge with factored part 35.000%

(1600616052+8*52323192)*617#+1 is prime! (0.0204s+0.0009s)

Primality testing (1600616052+9*52323192)*617#+1 [N-1, Brillhart-Lehmer-Selfridge]

Running N-1 test using base 2

Calling Brillhart-Lehmer-Selfridge with factored part 34.545%

(1600616052+9*52323192)*617#+1 is prime! (0.0184s+0.0009s) - View SourceKen Davis wrote:
> (1600616052+n*52323192)*617#+1 (n=0-9) describes a 265 digit ap10

Congratulations on continuing your AP record sweep, now AP4 to AP10.

http://users.cybercity.dk/~dsl522332/math/aprecords.htm is updated.

--

Jens Kruse Andersen - View SourceHi Jens,

Thanks for the congrats

I think I'll move on to something else for a while.

My method is not well suited for searches above ap10

Poisson was kind to me this time

Details of this one were

Newpgen sieved 1e9 to 2e9

pfgw yielded 18,894,798 prps

C++ AP Search program (combined total of 2700 ghz hrs over 5 PCs)

Resulted in

71214 ap7s

1133 ap8s

14 ap9s

0 ap10s

Ran pfgw script files to extend AP7s, 8 and 9's (up and down) where appropriate

Resulted in additional

409 ap8s

11 ap9s

1 ap10

cheers

Ken