Wow, S938 has 49 remaining k at n = 1000. With a conjectured k of 314, this is absolutely nasty. We'll see what remains once I get to n = 25000.

[QUOTE=rogue;246404]Wow, S938 has 49 remaining k at n = 1000. With a conjectured k of 314, this is absolutely nasty. We'll see what remains once I get to n = 25000.[/QUOTE]

You think that is bad, S992 is the worst of all for CK < 1000. With a CK=332, it has 62 k's remaining at n=[B]5K[/B]! Ian reserved it about a week ago.

The 2nd worst (and worst still open for reservation) is R878 with a CK=292. It has 56 k's remaining at n=5K.

There is nothing else even remotely close to these 2 bases for any CK < 1000; and that includes bases that have already been reserved and/or tested to n=25K. They are why I choose to test upward by # of k's remaining at n=5K instead of CK.

Most of the low-lying fruit has now been tested or reserved.

S762 done
 

8 k remain at n=25000. Released.

S830 done
 

18 k remain at n=25000. Released.

Riesel 694
 

Riesel 694, a 2ker, tested n=25K-100K. Nothing found

Base released - Results emailed

Riesel 634
 

Riesel 634, a 2ker, tested n=25K-100K. Nothing found

Base released - Results emailed

[QUOTE=rogue;246399]Taking S972, S848, S938, and S628. That takes care of conjectures with k < 1000 on the Sierpinski side.[/QUOTE]

Mark,

Ian has already tested S628 to n=25K. See [URL]http://www.mersenneforum.org/showpost.php?p=242765&postcount=955[/URL].

Sorry...I guess we didn't get it removed from the bases remaining to be tested list when it was reserved previously.

Edit: One thing that I thought was strange on this that I just now noticed: You said that these 4 bases take care of all Sierp CK bases < 1000. S628 has a CK = 1072. Did you mean some other base?


Gary

[QUOTE=gd_barnes;246708]Mark,

Ian has already tested S628 to n=25K. See [URL]http://www.mersenneforum.org/showpost.php?p=242765&postcount=955[/URL].

Sorry...I guess we didn't get it removed from the bases remaining to be tested list when it was reserved previously.

Edit: One thing that I thought was strange on this that I just now noticed: You said that these 4 bases take care of all Sierp CK bases < 1000. S628 has a CK = 1072. Did you mean some other base?

Gary[/QUOTE]

OK. I'll take S628 out of my queue.

I had four cores, so I chose four bases. It was just easier that they were all Sierpinski.

Sierp 684
 

Sierp 684, a 2ker, tested n=25K-100K. Nothing found

Base released - Results emailed

Sierp 613
 

Sierp Base 613
Conjectured k = 1536
Covering Set = 5, 53, 307
Trivial Factors k == 1 mod 2(2) and k == 2 mod 3(3) and k == 16 mod 17(17)

Found Primes: 472k's - File emailed

Remaining: 9k's - Tested to n=25K - File emailed

Trivial Factor Eliminations: 286k's

Base Released

S695
 

S695 tested n=25K-100K

Primes found:
8*695^39625+1 is prime

[URL]http://primes.utm.edu/primes/page.php?id=97516[/URL]
2*695^94625+1 is prime

Conjecture proven - Results emailed