S618
 

Reserving S618 up to n=100k

S618
 

[CODE]Primality testing 3693*618^80879+1 [N-1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 5
3693*618^80879+1 is prime! (1130.3701s+0.0077s)[/CODE]

k=3693 can be removed for S618 :smile:
This also marks the first prime I've found in any of my S/R related testing! :smile:

The prime was 225736 decimal digits.

Good start! :tu:

From your sieve for S618, you may want to remove k=729, where n is divisible by 3. (No other algebraics for this base.)

I am pleased to say I used your dump_algebraics file to do so (assuming I did it right!). :tu:

[CODE]Primality testing 73*618^46256+1 [N-1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 7
73*618^46256+1 is prime! (281.2761s+0.0042s)[/CODE]

You can knock k=73 off the list for S618 as well!

[QUOTE=wombatman;406114][CODE]Primality testing 73*618^46256+1 [N-1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 7
73*618^46256+1 is prime! (281.2761s+0.0042s)[/CODE]You can knock k=73 off the list for S618 as well![/QUOTE]

Good job on the primes! A note: Because there are 98 k's remaining (minus the 2 primes that you found), it would be easier for us if you report all of the primes when you are complete with your reservation. Thanks!

You bet! Got excited for my 1st two actual found primes.:smile:

S856
 

S856 tested n=2.5K-25K

291 primes found - 168 remain

Results emailed - base released

[COLOR=red]Reserving S592 to n=25K[/COLOR]

Reserving these 1-kers:
R109, R123, R181, R332, R470, R492, R493, R636,
S183, S257, S386, S402, S406, S414, S416, S417, S436, S678, S834, S864.

They will be run together, sorted by decimal size, so I will copy this message in all reservation threads.

S772
 

S772 tested n=10K-25K

134 primes found - 477 remain

Results emailed - Base released

Reserving S964 to n=100k (50-100k) for BOINC