S72
 

S72 tested to 150k, nothing found. Releasing.

R42 complete to n=100K, one additional prime.

8453*42^89184-1

33 k's remaining, base released.

Results will be emailed.

Max is reserving S75 to n=100K.

R75 is complete to n=50K

2 more primes found

Primality testing 1312*75^45281-1 [N+1, Brillhart-Lehmer-Selfridge]
Running N+1 test using discriminant 7, base 1+sqrt(7)
Calling Brillhart-Lehmer-Selfridge with factored part 74.55%
1312*75^45281-1 is prime! (6249.5457s+0.0984s)

Primality testing 2854*75^47919-1 [N+1, Brillhart-Lehmer-Selfridge]
Running N+1 test using discriminant 3, base 3+sqrt(3)
Calling Brillhart-Lehmer-Selfridge with factored part 74.55%
2854*75^47919-1 is prime! (1728.2943s+0.0823s)

Results will be emailed

Riesel 93
 

Riesel 93, the last k, tested n=100K-200K.

Nothing found - Base released - Results emailed

riesel base 36
 

Hi all,

I finished my reservation on Riesel base 36. I had a nice number of primes, posted before. One of these is still shown with the reservation, so let me make sure:
49663*36^83542-1 is prime.

Willem

and the second half of the pfwg.out

S70 complete to n=100K
 

S70 is complete to n=100K, nothing new to report. Residuals is going to be e-mailed.

KEP!

R39 is complete to n=25K

11 primes found.

Attached are the primes and the remaining k's.

I will email the out files.

Reserving k=200K to 400K to n=25K

3782*75^41086+1 is prime, reducing S75 to 3 k's remaining.

And another one:

2336*75^43523+1 is prime!

I may yet prove this base by n=100K! :smile: