Bases 101-250 reservations/statuses/primes - Page 5

MyDogBuster · 2011-09-21, 08:22

Sierp Base 166
Conjectured k = 140947
Covering Set = 7, 13, 43, 167
Trivial Factors k == 2 mod 3(3) and k == 4 mod 5(5) and k == 10 mod 11 (11)

Found Primes: 67855k's - File emailed

Remaining k's: 225k's - Tested to n=10K - File emailed

Trivial Factor Eliminations: 72609k's

MOB Eliminations: 254k's - File emailed

GFN's:
166
27556

Base Released

gd_barnes · 2011-09-23, 07:42

R217 is complete to n=100K; 1 prime was found for n=50K-100K shown below; 6 k's remain; base released.

Prime:
1106*217^90905-1

gd_barnes · 2011-09-27, 15:35

R235 is complete to n=100K; 5 primes were found for n=25K-100K shown below; 10 k's remain; base released.

Primes:

Code:

3270*235^34802-1
4032*235^35848-1
2148*235^50099-1
30*235^56835-1
1136*235^83633-1

gd_barnes · 2011-09-28, 17:32

Releasing R148 and S148 due to lack of activity and response over 4-6 months.

firejuggler · 2011-09-28, 18:49

will take over R148

gd_barnes · 2011-09-28, 19:14

Quote:

Originally Posted by firejuggler

will take over R148

Welcome to CRUS firejuggler. If you have any questions about sieving or testing, let us know.

Can I ask what range you plan to sieve and test and how many cores can you dedicate to it? 7 k's at n=120K for such a high base is a lot of work. One modern quad-core running all 4 cores 24x7 should be enough but progress will still be slow.

gd_barnes · 2011-09-29, 19:15

S249 is complete to n=100K; 2 primes were found for n=50K-100K shown below; 8 k's remain; base released.

Primes:
286*249^52498+1
754*249^54387+1

firejuggler · 2011-09-29, 20:42

in the beginning i was planning to do 120-200k, on a core 2 duo... upon sieving /llr'ing i'll do it up to 130k only.

firejuggler · 2011-09-30, 21:43

ok, back to reality . i won't be able to do this. releasing b148...
find k=1256 sieved up to 1.13e12 and the other k sieved up to 67.5e9
sorry again. (n 120k-130k)

TimSorbet · 2011-09-30, 22:49

Reserving S166 to n=25K (recommended base). Rough time estimate is 2 weeks.

gd_barnes · 2011-10-01, 05:01

Reserving S171 and S211 to n=100K.

2011-09-21, 08:22	#45
MyDogBuster May 2008 Wilmington, DE 101100100100₂ Posts	S166 Sierp Base 166 Conjectured k = 140947 Covering Set = 7, 13, 43, 167 Trivial Factors k == 2 mod 3(3) and k == 4 mod 5(5) and k == 10 mod 11 (11) Found Primes: 67855k's - File emailed Remaining k's: 225k's - Tested to n=10K - File emailed Trivial Factor Eliminations: 72609k's MOB Eliminations: 254k's - File emailed GFN's: 166 27556 Base Released Last fiddled with by gd_barnes on 2011-09-21 at 17:01 Reason: S266 -> S166

2011-09-27, 15:35	#47
gd_barnes "Gary" May 2007 Overland Park, KS 3×3,943 Posts	R235 is complete to n=100K; 5 primes were found for n=25K-100K shown below; 10 k's remain; base released. Primes: Code: 3270235^34802-1 4032235^35848-1 2148235^50099-1 30235^56835-1 1136*235^83633-1

2011-09-30, 21:43	#53
firejuggler "Vincent" Apr 2010 Over the rainbow 2²×7×103 Posts	ok, back to reality . i won't be able to do this. releasing b148... find k=1256 sieved up to 1.13e12 and the other k sieved up to 67.5e9 sorry again. (n 120k-130k) Last fiddled with by gd_barnes on 2011-10-01 at 05:00 Reason: save & delete attachment

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2011-09-23, 07:42	#46
gd_barnes "Gary" May 2007 Overland Park, KS 27065₈ Posts	R217 is complete to n=100K; 1 prime was found for n=50K-100K shown below; 6 k's remain; base released. Prime: 1106*217^90905-1

2011-09-28, 17:32	#48
gd_barnes "Gary" May 2007 Overland Park, KS 3·3,943 Posts	Releasing R148 and S148 due to lack of activity and response over 4-6 months.

2011-09-28, 18:49	#49
firejuggler "Vincent" Apr 2010 Over the rainbow 2²·7·103 Posts	will take over R148

2011-09-29, 19:15	#51
gd_barnes "Gary" May 2007 Overland Park, KS 11829₁₀ Posts	S249 is complete to n=100K; 2 primes were found for n=50K-100K shown below; 8 k's remain; base released. Primes: 286249^52498+1 754249^54387+1

2011-09-29, 20:42	#52
firejuggler "Vincent" Apr 2010 Over the rainbow 2²·7·103 Posts	in the beginning i was planning to do 120-200k, on a core 2 duo... upon sieving /llr'ing i'll do it up to 130k only.

2011-09-30, 22:49	#54
TimSorbet Account Deleted "Tim Sorbera" Aug 2006 San Antonio, TX USA 11×389 Posts	Reserving S166 to n=25K (recommended base). Rough time estimate is 2 weeks.

2011-10-01, 05:01	#55
gd_barnes "Gary" May 2007 Overland Park, KS 3·3,943 Posts	Reserving S171 and S211 to n=100K.