Bases 2 & 4 reservations/statuses/primes - Page 14

Jean Penné · 2008-12-02, 15:11

Congrats, Kasrsten, for the last prime found!
My sieving on the 13 remaining files crunches now 400,000 p's per second!!

Here is my new status :

Riesel even n's :

k = 9519 is up to n = 1450096, no prime. RELEASING THIS k !!

Riesel odd n's :

k = 148323 is up to n = 1203039, no prime ; RELEASING THIS k !!

In place of these two stubborn k's, I am now reserving for Riesel odd n's :

k = 35687 and k = 133977 which were released by Gary Barnes, and I will

LLR-test them from n = 800000 base 2.

I updated recently the presieved files on my site :

http://jpenne.free.fr/ConjRus/

Active Riesel files are sieved up to 8000.92 billions.

Active Sierpinski files are sieved up to 4504.25 billions.

Regards,
Jean

kar_bon · 2008-12-03, 10:28

Quote:

Originally Posted by Jean Penné

k = 35687 and k = 133977 which were released by Gary Barnes, and I will

i've reserved k=39687 for you!

Jean Penné · 2008-12-03, 10:40

Quote:

Originally Posted by kar_bon

i've reserved k=39687 for you!

Thank you, Karsten, and sorry for the typo!

I am now LLR testing k = 39687 and k = 133977, both starting to 800,000 base 2

Regards,
Jean

kar_bon · 2008-12-03, 12:59

just stopped the even-Riesel task to put the new sieved files in for testing and found this:

30003*2^613463-1 is prime!

hope the sieving gets another slight boost now!

kar_bon · 2008-12-04, 09:26

i've put a 'Countdown' in the related Liskovets-Gallot-Conjectures-page:

only 20 primes and these 4 conjectures are proven!

Jean Penné · 2008-12-05, 18:31

Congrats, Karsten, for your last discover!

I found that while going back at home :

133977*2^811485-1 is prime!

So, I wish to reserve k = 155877 in place, and will LLR test it starting to 800K

Best Regards,
Jean

gd_barnes · 2008-12-05, 21:03

Quote:

Originally Posted by Jean Penné

Congrats, Karsten, for your last discover!

I found that while going back at home :

133977*2^811485-1 is prime!

So, I wish to reserve k = 155877 in place, and will LLR test it starting to 800K

Best Regards,
Jean

Nice find! Darn, it looks like I stopped a little too early.

You've searched so much for n>1M that you deserved a quick prime for a change!

Gary

gd_barnes · 2008-12-11, 09:50

Karsten,

Can you give a status update on your even-n and odd-n conjecture searches?

As you know, our goal is n=600K base 2 on all powers-of-2 bases by year end. Riesel and Sierp base 16 just passed n=150K earlier this week and I just now passed n=75K on Sierp base 256 after completing Riesel base 256 to n=75K a couple of weeks ago.

The most important k at this point is k=20049 for even-n. It is also remaining for bases 4 and 16, the only k at n<600K base 2 that is remaining for 3 bases.

Also, all even-n would be more important than odd-n. Even-n k=14361 and 19401 are also remaining for base 4. None of the odd-n are remaining for base 4.

I think the next good goal to shoot for will be n=800K for all powers-of-2 bases by the end of March or April. We have sieved files available on almost all of them already either here or through the drives. The main exception would be Riesel base 256.

Thanks,
Gary

kar_bon · 2008-12-11, 11:07

Quote:

Originally Posted by gd_barnes

Karsten,

Can you give a status update on your even-n and odd-n conjecture searches?

sure, don't worry.

here the results:

even: k=14361, 19401, 20049 at n=964k (base 2), no primes :-(

odd: k= 103947, 147687, 154317, 163503 at n=665k (base 2)

i'll update the page today.

gd_barnes · 2008-12-11, 11:11

Quote:

Originally Posted by kar_bon

sure, don't worry.

here the results:

even: k=14361, 19401, 20049 at n=964k (base 2), no primes :-(

odd: k= 103947, 147687, 154317, 163503 at n=665k (base 2)

i'll update the page today.

Wow; a lot of work done! Thanks for the udpate.

These are very stubborn k!

Jean Penné · 2008-12-27, 07:37

Hello,
Here is my new status :

Riesel odd n's :

k = 39687 is up to n = 1006557, no prime, continuing...

k = 155877 is up to n = 865805, no prime, continuing...

again two stubborn k's...

I updated yesterday the presieved files on my site :

http://jpenne.free.fr/ConjRus/

Active Riesel files are sieved up to more than 9 T.

Active Sierpinski files are sieved up to more than 5 T.

Best wishes for year 2009 and best Regards,
Jean

2008-12-02, 15:11	#144
Jean Penné May 2004 FRANCE 2²·5·29 Posts	New Status and Reservations ; Updated sieved files Congrats, Kasrsten, for the last prime found! My sieving on the 13 remaining files crunches now 400,000 p's per second!! Here is my new status : Riesel even n's : k = 9519 is up to n = 1450096, no prime. RELEASING THIS k !! Riesel odd n's : k = 148323 is up to n = 1203039, no prime ; RELEASING THIS k !! In place of these two stubborn k's, I am now reserving for Riesel odd n's : k = 35687 and k = 133977 which were released by Gary Barnes, and I will LLR-test them from n = 800000 base 2. I updated recently the presieved files on my site : http://jpenne.free.fr/ConjRus/ Active Riesel files are sieved up to 8000.92 billions. Active Sierpinski files are sieved up to 4504.25 billions. Regards, Jean

2008-12-05, 18:31	#149
Jean Penné May 2004 FRANCE 2²×5×29 Posts	Happy times : only 19 remaining now! Congrats, Karsten, for your last discover! I found that while going back at home : 133977*2^811485-1 is prime! So, I wish to reserve k = 155877 in place, and will LLR test it starting to 800K Best Regards, Jean

2008-12-27, 07:37	#154
Jean Penné May 2004 FRANCE 2²×5×29 Posts	New status ; Updated presieved files. Hello, Here is my new status : Riesel odd n's : k = 39687 is up to n = 1006557, no prime, continuing... k = 155877 is up to n = 865805, no prime, continuing... again two stubborn k's... I updated yesterday the presieved files on my site : http://jpenne.free.fr/ConjRus/ Active Riesel files are sieved up to more than 9 T. Active Sierpinski files are sieved up to more than 5 T. Best wishes for year 2009 and best Regards, Jean

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2008-12-03, 12:59	#147
kar_bon Mar 2006 Germany 5·7·83 Posts	just stopped the even-Riesel task to put the new sieved files in for testing and found this: 30003*2^613463-1 is prime! hope the sieving gets another slight boost now!

2008-12-04, 09:26	#148
kar_bon Mar 2006 Germany 5·7·83 Posts	i've put a 'Countdown' in the related Liskovets-Gallot-Conjectures-page: only 20 primes and these 4 conjectures are proven!

2008-12-11, 09:50	#151
gd_barnes May 2007 Kansas; USA 10403₁₀ Posts	Karsten, Can you give a status update on your even-n and odd-n conjecture searches? As you know, our goal is n=600K base 2 on all powers-of-2 bases by year end. Riesel and Sierp base 16 just passed n=150K earlier this week and I just now passed n=75K on Sierp base 256 after completing Riesel base 256 to n=75K a couple of weeks ago. The most important k at this point is k=20049 for even-n. It is also remaining for bases 4 and 16, the only k at n<600K base 2 that is remaining for 3 bases. Also, all even-n would be more important than odd-n. Even-n k=14361 and 19401 are also remaining for base 4. None of the odd-n are remaining for base 4. I think the next good goal to shoot for will be n=800K for all powers-of-2 bases by the end of March or April. We have sieved files available on almost all of them already either here or through the drives. The main exception would be Riesel base 256. Thanks, Gary