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Old 2008-10-14, 19:27   #78
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Primality testing 202823362*3^62951-1 [N+1, Brillhart-Lehmer-Selfridge]
Running N+1 test using discriminant 3, base 1+sqrt(3)
202823362*3^62951-1 is prime! (294.2833s+0.0351s)

A randomly picked k.

Willem.
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Old 2008-10-15, 19:09   #79
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Quote:
Originally Posted by gd_barnes View Post
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
vaguely when is this gonna be
i want to know so i can fit my work around it
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Old 2008-10-15, 19:28   #80
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Quote:
Originally Posted by henryzz View Post
vaguely when is this gonna be
i want to know so i can fit my work around it
I have sent the sieved file to Gary yesterday.
I reckon he'll process it into separate file when he has some time.
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Old 2008-10-15, 19:46   #81
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Originally Posted by michaf View Post
I have sent the sieved file to Gary yesterday.
I reckon he'll process it into separate file when he has some time.
good i will continue doing llrnet until then
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Old 2008-10-16, 23:33   #82
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Quote:
Originally Posted by henryzz View Post
good i will continue doing llrnet until then
At your service, the mini-drive for Riesel base 3 is ready to go!

Micha, there were 2 k's in your sieved file that already had primes so I removed them leaving 434 k's remaining. One that Henry (I believe) recently found a prime on and one that I erroneously left as remaining on my Riesel base 3 reservations page where there was a prime on the top-5000 site. The primes are:

4245112*3^34528-1
75030224*3^133779-1


Gary

Last fiddled with by gd_barnes on 2008-10-16 at 23:36
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Old 2008-10-16, 23:38   #83
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Quote:
Originally Posted by Siemelink View Post
Primality testing 202823362*3^62951-1 [N+1, Brillhart-Lehmer-Selfridge]
Running N+1 test using discriminant 3, base 1+sqrt(3)
202823362*3^62951-1 is prime! (294.2833s+0.0351s)

A randomly picked k.

Willem.
Very funny random work.

Can we get another random prime on a k > 100M ? lol
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Old 2008-10-17, 14:13   #84
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@Gary:

1. Thanks for taking a defense of my statement/dream... I'm not sure if it is possible to get even the base 3 riesel conjecture to n<=50M since it will take at n=50M approximately 178 days to do 1 test... but it's always nice to have dreams to pursuit

2. I would seriously once I get the energy (a little low on this at the moment) update the stats and ressurrect the "Riesel base 3 attack" website. Expect nothing though before k<=500M has been completed... currently testing around k<=350M, but before christmas maybe a new website and new strength can be found to do an overall much hugher effort...

@All: can you all please send me for Riesel base 3, the primes where n>25000 to my e-mail: kenneth 010982 @ g mail . com (remove spaces)... this will be very helpfull when continuing to create the proof. Thanks in advance!

Take care everyone!

KEP!
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Old 2008-10-22, 14:01   #85
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Quote:
Originally Posted by gd_barnes View Post
?? You're doing it again KEP, stating different things on different days on huge efforts. On one hand, you want to reserve something to PrimeGrid level, which will be a multi-year CPU effort, and then on the other hand, you allow the fact that you have a few weeks on your current efforts to stop you? That is, to put it mildly, quite confusing.

Let me see if I have you down correctly now:
Riesel base 3 for k=250M-500M up to n=25K
Riesel base 3 for k<5M (2 k's) up to n=1M (!!)

The above is a tremendous amount of work for < 2 quads.

If you need some filler work to keep your machines busy, please take something smaller; perhaps some files from the Riesel and Sierp base 3 mini-drives.


Thanks,
Gary
If it wasn't clear, I'm sorry, it all refers to some of the reasons earlier e-mailed to you. I suffered a setback this week, and also I forgot how much more work I've left. You've put my reservations right. Some status:

Riesel base 3 at k=~360M to n<=25000
Riesel base 3 k<=5M, still 2 k's remaining at n<=100K

Again I ask you to accept my appologize, it all refers to private reasons, and a matter of concentration aswell memory. Expect no more reservations (or at least just ignore them) within the next 6 months, since my intention is to wrap what is now reserved and then leave for at least a while.

Thanks for understanding, and good luck on your own challenges

Last fiddled with by gd_barnes on 2010-01-18 at 09:02 Reason: remove bases not Riesel base 3
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Old 2008-10-23, 01:19   #86
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Quote:
Originally Posted by KEP View Post
If it wasn't clear, I'm sorry, it all refers to some of the reasons earlier e-mailed to you. I suffered a setback this week, and also I forgot how much more work I've left. You've put my reservations right. Some status:

Riesel base 3 at k=~360M to n<=25000
Riesel base 3 k<=5M, still 2 k's remaining at n<=100K

Again I ask you to accept my appologize, it all refers to private reasons, and a matter of concentration aswell memory. Expect no more reservations (or at least just ignore them) within the next 6 months, since my intention is to wrap what is now reserved and then leave for at least a while.

Thanks for understanding, and good luck on your own challenges

Thanks KEP for the detailed status on everything.

On Riesel base 3, those 2 k's were already at n=100K. I take it you haven't worked on that yet?


Gary

Last fiddled with by gd_barnes on 2010-01-18 at 09:14 Reason: remove base 19
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Old 2008-10-23, 03:45   #87
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Quote:
Originally Posted by gd_barnes View Post
Thanks KEP for the detailed status on everything.

On Riesel base 3, those 2 k's were already at n=100K. I take it you haven't worked on that yet?


Gary
To answer your question: That's correct the 2 k's haven't been worked on yet!


KEP

Last fiddled with by gd_barnes on 2010-01-18 at 09:20 Reason: remove base 19
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Old 2008-10-29, 19:32   #88
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4223272*3^134986-1 is prime.

This means only 1 k to go

Now a quick question, for Gary:

The primes for Riesel base 3 for k<=500M for n<=500 are you interested in having those or will you rediscover those primes again, once you continue constructing or others continue constructing the proof for Riesel base 3 conjecture?

KEP!
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