Bases 251-500 reservations/statuses/primes - Page 43

unconnected · 2010-06-20, 21:17

Riesel base 500 completed to n=100K.
Only 1 prime this time: 107*500^30954-1

Results attached.

Flatlander · 2010-06-21, 22:05

S259 and S401 sieves attached, no reservations.

S259
50k-150k.
P=3.6T.

S401
25k-100k
P=1.8T

vmod · 2010-06-23, 12:12

R272 complete to n=100K, no prime.

Results attached, base released.

MyDogBuster · 2010-06-23, 21:08

Riesel Base 287
Conjectured k = 14276
Covering Set = 3, 5, 17, 457
Trivial Factors k == 1 mod 2(2) and k == 1 mod 11(11) and k == 1 mod 13(13)

Found Primes: 5751k's - File emailed

Remaining: 222k's - File emailed - Tested to n=25K

Trivial Factor Eliminations: 1148k's

MOB Eliminations: 16k's - File emailed

Base Released

gd_barnes · 2010-06-24, 09:26

R468 is complete to n=25K; 1 prime found for n=5K-25K; 5 k's remaining; base released.

S468 is complete to n=25K; 5 primes found for n=5K-25K; 6 k's remaining; base released.

S492 is complete to n=25K; 2 primes found for n=5K-25K; 3 k's remaining; base released.

henryzz · 2010-06-24, 16:34

S273 is finally finished to 25k with 15 ks remaining.
Primes and results linked.
http://www.sendspace.com/file/zgj8k8

Batalov · 2010-06-24, 23:14

I had R470 (as well as R471) continued to n=75K, but didn't make a note of it.
With 83*470^61902-1 prime, there's one k=137 left.
Re-reserving to n=100K.

gd_barnes · 2010-06-27, 02:59

Here is a clarification that I got from Serge in a PM on his status for R470 and R471:

Quote:

Briefly, R471 is of course slow (with 3k's!) and I only intend to finish the 75K that I reserved. Tests are taking 1100s for R471 now. It is at 67K; no primes.
R470 also takes 800-900s per test but with the sudden prime I will take it to 100K.

gd_barnes · 2010-06-27, 10:19

S363 with CK=64 is proven with a highest prime of 48*363^4283+1.

Also reserving S320 with CK=106 to n=25K.

paleseptember · 2010-06-28, 04:49

Whilst work on R603 is paused (see question in relevant thread), I'll take S425 (conj k=70) out for a spin.
Two k remain at n=2500, (k=8 and k=70) (actually, do I need to test k=70? I'm having a daft moment here :P)
Reserved to n=25K.

Mathew · 2010-06-28, 05:06

paleseptember,

You do not need to test k=70, since it is the CK.

Thank you for your time

Mathew

2010-06-23, 21:08	#466
MyDogBuster May 2008 Wilmington, DE 2²×23×31 Posts	Riesel 287 Riesel Base 287 Conjectured k = 14276 Covering Set = 3, 5, 17, 457 Trivial Factors k == 1 mod 2(2) and k == 1 mod 11(11) and k == 1 mod 13(13) Found Primes: 5751k's - File emailed Remaining: 222k's - File emailed - Tested to n=25K Trivial Factor Eliminations: 1148k's MOB Eliminations: 16k's - File emailed Base Released

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Riesel base 3 reservations/statuses/primes	KEP	Conjectures 'R Us	1107	2021-07-26 18:37
Bases 501-1030 reservations/statuses/primes	KEP	Conjectures 'R Us	3913	2021-07-26 09:58
Bases 6-32 reservations/statuses/primes	gd_barnes	Conjectures 'R Us	1397	2021-07-25 07:07
Bases 101-250 reservations/statuses/primes	gd_barnes	Conjectures 'R Us	905	2021-07-18 16:55
Bases 33-100 reservations/statuses/primes	Siemelink	Conjectures 'R Us	1691	2021-07-06 18:50

2010-06-24, 09:26	#467
gd_barnes May 2007 Kansas; USA 101×103 Posts	R468 is complete to n=25K; 1 prime found for n=5K-25K; 5 k's remaining; base released. S468 is complete to n=25K; 5 primes found for n=5K-25K; 6 k's remaining; base released. S492 is complete to n=25K; 2 primes found for n=5K-25K; 3 k's remaining; base released.

2010-06-24, 16:34	#468
henryzz Just call me Henry "David" Sep 2007 Cambridge (GMT/BST) 1011011111001₂ Posts	S273 is finally finished to 25k with 15 ks remaining. Primes and results linked. http://www.sendspace.com/file/zgj8k8

2010-06-24, 23:14	#469
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 2⁴×593 Posts	I had R470 (as well as R471) continued to n=75K, but didn't make a note of it. With 83*470^61902-1 prime, there's one k=137 left. Re-reserving to n=100K.

2010-06-27, 10:19	#471
gd_barnes May 2007 Kansas; USA 101×103 Posts	S363 with CK=64 is proven with a highest prime of 48*363^4283+1. Also reserving S320 with CK=106 to n=25K.

2010-06-28, 04:49	#472
paleseptember Jun 2008 Wollongong, .au 3·61 Posts	Whilst work on R603 is paused (see question in relevant thread), I'll take S425 (conj k=70) out for a spin. Two k remain at n=2500, (k=8 and k=70) (actually, do I need to test k=70? I'm having a daft moment here :P) Reserved to n=25K.

2010-06-28, 05:06	#473
Mathew Nov 2009 101011110₂ Posts	paleseptember, You do not need to test k=70, since it is the CK. Thank you for your time Mathew