Riesel Base 360 complete upto 10k with 92ks remaining at 2.5k and 62ks at 10k. Continuing to 25k.

R485
 

Reserving R485 as new to n=25K

Matthew has reported completion of S492 to n=100K. No primes found for n=50K-100K. The base is released.

S263
 

S263 tested n=100K-200K - Nothing found

Results emailed - Base released

S428
 

S428 tested n=100K-200K - Nothing found

S498
 

Sierp Base 498
Conjectured k = 7983
Covering Set = 5, 257, 499
Trivial Factors k == 6 mod 7(7) and k == 70 mod 71(71)

Found Primes: 6662k's - File emailed

Remaining: 73k's - Tested to n=25K - File emailed

Trivial Factor Eliminations: 1236k's

MOB Eliminations: 9k's - File emailed

GFN: 1k - File emailed
498

Base Released

R290
 

R290 is proven:

19*290^51591-1
64*290^96385-1
71*290^49360-1
81*290^45303-1

[QUOTE=Puzzle-Peter;261520]R290 is proven:

19*290^51591-1
64*290^96385-1
71*290^49360-1
81*290^45303-1[/QUOTE]

Wow! That seems incredibly lucky.

[QUOTE=Puzzle-Peter;261520]R290 is proven:

19*290^51591-1
64*290^96385-1
71*290^49360-1
81*290^45303-1[/QUOTE]

An amazing run to the proof. Congrats!

[QUOTE=gd_barnes;261547]An amazing run to the proof. Congrats![/QUOTE]

Thanks! Which base will fall next?

[QUOTE=Puzzle-Peter;261548]Thanks! Which base will fall next?[/QUOTE]

S290 is waiting for you, also with 4 k's remaining at n=25K for a CK of 98. :smile:

Other good bases would be any with 3 or 4 k's remaining at n=25K or 50K.