R1003 is complete to n=25K

CK=396

3 k's remain k=252,318,338

Attached are the results

Lucky, again. Sieved to 100K and...
28*898^98959+1 is prime. S898 is proven.

(...it also completes a stretch of 6 contiguous proven bases: S898-S903.)

I'll do S883 to 25K.

Sierp 784
 

Sierp 784, the last k, tested n=50K-100K. Nothing found.

Results emailed. Base released

Sierp 828
 

Sierp 828, the last k, tested n=25K-100K. Nothing found.

Results emailed. Base released

[quote=Batalov;227432]Lucky, again. Sieved to 100K and...
28*898^98959+1 is prime. S898 is proven.[/quote]

[quote=Batalov;227457](...it also completes a stretch of 6 contiguous proven bases: S898-S903.)[/quote]

A huge congrats on our first 6-bagger! :smile:

I definitely did not expect that we would get one so soon.

R828 is complete to n=25K; k=64, 68, & 74 remain; highest prime 15*828^2308-1; base released.

S774 is complete to n=25K; k=6 & 19 remain; highest prime 24*774^6333+1; base released.

Sierpinski reservations
 

Taking S602, S842, S710, S746, S684, S720, S534, S641, S748, and S962

Reserving these 1ker's to n=100K

R782, R812, R815, R836, R845

R610 1k, done to 100K. Extending reservation to 150K.
R622 1k, done to 25K. Released.
R850 2k, done to 25K. Released.
R868 1k, done to 25K. Released.
R916 1k, done to 25K. Released.
R967 1k, done to 25K. Released.

S850 1k, done to 25K. Released.
S867 1k, done to 25K. Released.
S883 2k, done to 33K. Released.
S1016 1k, done to 25K. Released.