mersenneforum.org Riesel Primes k*2^n-1, k<300 [Part II]
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 2010-04-30, 18:26 #364 Cruelty     May 2005 65216 Posts Status report k=25 tested till n=2.36M k=43 tested till n=2.12M k=101 tested till n=2.39M k=151 tested till n=2.32M k=223 tested till n=2.36M k=233 tested till n=1.61M Last fiddled with by Cruelty on 2010-04-30 at 18:27
 2010-04-30, 22:15 #365 amphoria     "Dave" Sep 2005 UK 2·19·73 Posts Status k=67 tested to 2.18M k=227 tested to 1.15M Last fiddled with by Kosmaj on 2010-05-04 at 02:42 Reason: k=67 was 68
2010-04-30, 23:46   #366
Beyond

Dec 2002

22·3·37 Posts

k=251 tested to 2.0m -- sieving to 4m to start soon
k=47 & 53 sieving to 3m continues

251 results attached
Attached Files
 results.zip (205.4 KB, 50 views)

 2010-05-02, 03:43 #367 Lennart     "Lennart" Jun 2007 25·5·7 Posts Is it OK to take k=297 ? If it is I reserve that k. Lennart
 2010-05-02, 06:11 #368 Kosmaj     Nov 2003 70468 Posts Lennart Yes, k=297 is available from n=1M, ..., and it's now yours
2010-05-02, 06:16   #369
Lennart

"Lennart"
Jun 2007

21408 Posts

Quote:
 Originally Posted by Kosmaj Yes, k=297 is available from n=1M, ..., and it's now yours
Thanks :)

Lennart

 2010-05-04, 02:55 #370 Kosmaj     Nov 2003 2×1,811 Posts k=7 at 2530k k=21 at 1320k k=63 at 1130k (including 1120-1130 I tested 2 years ago) k=239 at 1290k The k<300 stats page updated with everything up to here, including PrimeGrid's k=3 prime at 6090k. Last fiddled with by Kosmaj on 2010-05-04 at 03:01
2010-05-09, 15:47   #371
Lennart

"Lennart"
Jun 2007

112010 Posts

Releasing k297 at 1.1M

No primes.

attached result. I have a sieve file 1M-3M sieved to 20T

PM me and I send you the file.

Lennart
Attached Files
 completed_K297_1M-1_1Mtests.log.zip (124.5 KB, 49 views)

Last fiddled with by Lennart on 2010-05-09 at 15:51

 2010-05-10, 02:23 #372 Kosmaj     Nov 2003 E2616 Posts Lennart Thanks for the results, although we hoped you would stay with us longer Can you kindly mail me the sieve file. Thanks.
2010-05-10, 03:37   #373
Lennart

"Lennart"
Jun 2007

25·5·7 Posts

Quote:
 Originally Posted by Kosmaj Thanks for the results, although we hoped you would stay with us longer Can you kindly mail me the sieve file. Thanks.
Mail sent.

I will come back and do more

Lennart

 2010-05-31, 16:30 #374 Cruelty     May 2005 65216 Posts Status report k=25 tested till n=2.37M k=43 tested till n=2.17M k=101 tested till n=2.43M k=151 tested till n=2.35M k=223 tested till n=2.42M k=233 tested till n=1.64M

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