Taking S892 to n=100000.

S667, S871
 

S667 complete to 50K
8355 primes found.
147 k remain

S871 complete to 50K.
5553 primes found.
28 k remain.

bases released.

My reservations on R262 and R616 will be complete next week, so I would now like to reserve R553 and R565, both to n=25k.

I'm away at a conference next week so it might be 2 weeks or so until I get chance to send in the results of R262 and R616.

Taking R800 and R900.

Taking S468 to n=100000.

S955
 

Reserving S955 to 25K.

S222
 

Reserving S222 to 25K

R716 completed to n=100000. No primes found and released. Residues will be e-mailed to Gary.

[URL="http://primes.utm.edu/primes/page.php?id=117957"]22*900^252407-1[/URL] is prime!
I wasted ~200 cpu-days for sieving 250K-1M to 266T :sad:

[QUOTE=unconnected;374956][URL="http://primes.utm.edu/primes/page.php?id=117957"]22*900^252407-1[/URL] is prime!
I wasted ~200 cpu-days for sieving 250K-1M to 266T :sad:[/QUOTE]

Nice prime and proof Dimitry! Sorry about the wasted sieving.

Interesting side note: 5 consecutive bases, 898 thru 902, are now proven on both sides; a first for CRUS. :-)

[QUOTE=unconnected;374956][URL="http://primes.utm.edu/primes/page.php?id=117957"]22*900^252407-1[/URL] is prime!
I wasted ~200 cpu-days for sieving 250K-1M to 266T :sad:[/QUOTE]

Ouch. But very nice prime!
When working over a range that large, it would probably be worth it to break off sieving to test in two or more ranges.