S458 completed to n=200000. No primes.

Dmitry has reported that R444, S444, and S500 are complete to n=100K. No additional primes found. The bases are released.

I am releasing R256. It will be more work than I'm able to handle at this time. I have sieved deeper (to 2e12), but I suspect that it will need to be sieved to 5e12 or deeper before one PRPing.

Kenneth has reported that S383 is at n=76.3K; 6 primes were found for n=25K-76.3K shown below; he is continuing.

Primes:
[code]
352*383^29628+1
800*383^37743+1
548*383^55359+1
876*383^55720+1
46*383^55808+1
944*383^75703+1
[/code]

Sierp 354
 

Sierp 354 is complete to n=100K. No primes (boo!), the same three k-values remain.

Base released.

Riesel 318
 

Taking the 3 k-values for R318 from n=25K to n=100K (hopefully.)

Serge has reported the following statuses with no primes to report:

S406 is complete to n=175K; base is released.

S461 is at n=243.8K; continuing to n=250K.

S463
 

Reserving S463 to n=100K

R318, S294
 

Just a quick status update, one k-value each knocked off my two current reservations.

[CODE]99*294^53407+1
78*318^33813-1
[/CODE]

This makes them 2-kers, and I will be continuing to n=100K as planned.

S353
 

S353 tested n=100K-200K - Nothing found

Results emailed - Base released

Un-Reserving S463 from n=25K-100K