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-   -   Riesel base 3 reservations/statuses/primes (https://www.mersenneforum.org/showthread.php?t=11151)

Siemelink 2008-10-14 19:27

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.

henryzz 2008-10-15 19:09

[quote=gd_barnes;144506]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[/quote]
vaguely when is this gonna be
i want to know so i can fit my work around it

michaf 2008-10-15 19:28

[quote=henryzz;145473]vaguely when is this gonna be
i want to know so i can fit my work around it[/quote]

I have sent the sieved file to Gary yesterday.
I reckon he'll process it into separate file when he has some time.

henryzz 2008-10-15 19:46

[quote=michaf;145474]I have sent the sieved file to Gary yesterday.
I reckon he'll process it into separate file when he has some time.[/quote]
good i will continue doing llrnet until then

gd_barnes 2008-10-16 23:33

[quote=henryzz;145477]good i will continue doing llrnet until then[/quote]

At your service, the mini-drive for Riesel base 3 is ready to go! :smile:

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

gd_barnes 2008-10-16 23:38

[quote=Siemelink;145409]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.[/quote]

Very funny random work. :smile:

Can we get another random prime on a k > 100M ? lol

KEP 2008-10-17 14:13

@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 :smile:

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!

KEP 2008-10-22 14:01

[quote=gd_barnes;146107]?? 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[/quote]

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 :smile:

gd_barnes 2008-10-23 01:19

[quote=KEP;146134]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 :smile:[/quote]


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

KEP 2008-10-23 03:45

[quote=gd_barnes;146216]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[/quote]

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


KEP

KEP 2008-10-29 19:32

4223272*3^134986-1 is prime.

This means only 1 k to go :smile:

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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