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-   -   Riesel Primes k*2^n-1, k<300 [Part II] (https://www.mersenneforum.org/showthread.php?t=8621)

VBCurtis 2007-10-08 18:46

I won't start on them for quite a while, and don't mind if someone else reserves them or wants to work the sieve files, so there's no need to mark them reserved for me. If someone else takes 'em, I'll forward the files along.

-Curtis

Cruelty 2007-10-21 11:43

Milestone report:
k=25, 59, 101 (and 617), have been tested till n=1.1M (I am still working on those).
k=141 and 269 will be merged into my 10k sieve making it a 12k sieve ;-)

Kosmaj 2007-10-23 23:32

Arminius completed k=49 to n=1.05M. No new primes were found.
The last one was at n=691469.

VBCurtis 2007-10-24 00:49

Monthly update
 
13 at 1.20M.
45 at 780k.
93 at 850k.
99 at 1.10M.
127 at 1.20M.
201 at 825k.
no progress on 11, 111, and 197. :cool:

-Curtis

Cruelty 2007-10-26 08:29

k=151 tested till n=800000, I'm still working on it.

MooooMoo 2007-10-30 04:23

1 Attachment(s)
k=19 has been completed to n=1050K, and no new primes were found.

I'm still working on it, and I've attached the residues from 1M (my last status update) to 1050K.

em99010pepe 2007-10-31 21:24

I would like to know if there's a sieve file available up to n=1M for the following k's: 295, 293, 287 and 275.
I think my strategy from now on will be to LLRing all k<300 up to 1M.

Thanks in advance,

Carlos

Kosmaj 2007-10-31 21:43

No, as far as I know.

I have sieved files for:
k=125, from n=870k to 1M, currently sieved to about 8T and
k=97, from n=930k to 1M, sieved to 3T (or more, not sure)

k=125 I can send you in a few days, k=97 I can send you in a few hours.

VBCurtis 2007-10-31 21:45

Carlos, I believe no work has been done past 600k on these numbers, including sieve work. If you are interested in already-sieved k's, choose one of the k's marked as tested by Masser to 700k. Reserve it here, and I will mail you the sieve file. His sieves run to 1M, conveniently. If you want, I can also send you the lowest- (or highest-) weight k from Masser's group, instead of picking one at random.

-Curtis

em99010pepe 2007-10-31 21:56

Kosmaj,

I'll take those two.

Curtis,

Please pick up two from Masser's group.

You both can send them to me within a week. I still have 3 days with k=5 and 5 days with k=105.

Carlos

Kosmaj 2007-11-01 07:26

Releasing:

k=97, tested 800-930k, one prime found at n=843205 (January 2006)
k=189, tested 700-770k, no primes


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