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Old 2008-09-29, 14:48   #67
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Quote:
Originally Posted by em99010pepe View Post
KEP,

Got your email but I thought I was only going to PRP the candidates like the mini-drive and not generation the file and sieve. I'll stay with Sierp Base 6 mini-drive.

Carlos
Just to confirm, and to let everyone know: I accept your unreservation. It really werent extra work for me, so no harm done But if you feel like wanna take out some big ranges, you're more than welcome back at any given time

But for now I'll see when I can continue do more work on Riesel base 3, on my own... maybe in a month or a couple of years, who knows what I decide once I complete the work I've left as reserved...

KEP
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Old 2008-09-30, 07:29   #68
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Carlos,

I think Micha indicated an interest in sieving Riesel base 3 k<100M for n=25K-100K. If he's working on that, I'll create a mini-drive out of that base when he's done sieving to n=~100G or so.

If he's not working on it, I'll start some sieving on it next week.


Gary

Last fiddled with by gd_barnes on 2008-10-05 at 03:04 Reason: Correct sieving limit
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Old 2008-10-05, 03:03   #69
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KEP reported by Email that he has completed Riesel base 3 up to k=250M and n=25K on Oct. 1st!

The effort was reviewed and is correct. Very nice work! There are now 1178 k's remaining for k<250M.

The web pages have now been updated for all reservations, search ranges, and primes at CRUS in the last week.


Gary
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Old 2008-10-05, 03:05   #70
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Micha confirmed by PM that he is sieving Riesel base 3 for k<100M and n=25K-100K. After he has sieved to an appropriate depth, I'll start a mini-drive for n=25K-50K.


Gary
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Old 2008-10-05, 07:19   #71
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3677878 and 4223272 have reached 100k with no primes
i am unreserving them
2/5 numbers i have tested have had a prime
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Old 2008-10-05, 07:40   #72
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Quote:
Originally Posted by henryzz View Post
3677878 and 4223272 have reached 100k with no primes
i am unreserving them
2/5 numbers i have tested have had a prime
Cool. Thanks for the update and testing those. Eliminating 40-50% of k's for n=25K-100K is close to what I would except.

Feel free to take the next 2-3 of them or grab a file from the Sierp mini-drive. n=1K files posted are now posted there for n=85K-100K.


Gary
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Old 2008-10-05, 14:12   #73
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I would like to reserve k<=5M up to 1M for Riesel base 3. I'm still keeping my other reservations, but I feels like I wanna be part of finding bigger primes. Already now it appears to be rather easy sieveable, so I'll sieve the 3 k's untill my Sierp base 19 reservation is completed and then I'll pause any else I've pending and work on this recent Riesel base 3 reservation

Hope its ok

KEP

EDIT: Just for clearence, I'm keeping all currently reserved work, but would like to add this to my list of reservations

Last fiddled with by KEP on 2008-10-05 at 14:13
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Old 2008-10-06, 08:26   #74
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Quote:
Originally Posted by KEP View Post
I would like to reserve k<=5M up to 1M for Riesel base 3. I'm still keeping my other reservations, but I feels like I wanna be part of finding bigger primes. Already now it appears to be rather easy sieveable, so I'll sieve the 3 k's untill my Sierp base 19 reservation is completed and then I'll pause any else I've pending and work on this recent Riesel base 3 reservation

Hope its ok

KEP

EDIT: Just for clearence, I'm keeping all currently reserved work, but would like to add this to my list of reservations

OK, that's fine. As prime as base 3 is, I would expect you to find a prime on all of them before n=1M. Good luck on finding a top-5000 prime!


Gary

Last fiddled with by gd_barnes on 2008-10-06 at 08:28
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Old 2008-10-06, 14:29   #75
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Quote:
Originally Posted by gd_barnes View Post
OK, that's fine. As prime as base 3 is, I would expect you to find a prime on all of them before n=1M. Good luck on finding a top-5000 prime!


Gary
Thanks!

At 151,700,000,000 p ~43,331 candidates remain.

If a top5000 candidate exists I'll catch it, no doubt about it

Kenneth!
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Old 2008-10-13, 16:04   #76
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3591446*3^191177-1 is prime... only 2 to go
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Old 2008-10-13, 22:20   #77
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Quote:
Originally Posted by KEP View Post
3591446*3^191177-1 is prime... only 2 to go

VERY nice! 91222 digits. Not far from top-5000 territory.

Historical note: This is the 6th largest prime ever found for Riesel base 3!!

k=3677878 is now the lowest k with no prime for this base.

Last fiddled with by gd_barnes on 2008-10-13 at 22:21
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