Bases 251-500 reservations/statuses/primes - Page 68

MyDogBuster · 2011-04-11, 01:01

R392 tested n=50K-100K - Nothing found

Results emailed - Base released

Mathew · 2011-04-12, 11:02

S334 is complete to n=50K

no primes.

Attached are the results

I would like to reserve S492 to n=50K

rogue · 2011-04-13, 02:24

Taking S458 (1 k remaining).

MyDogBuster · 2011-04-15, 01:06

Riesel Base 313
Conjectured k = 8634
Covering Set = 5, 97, 157
Trivial Factors k == 1 mod 2(2) and k == 1 mod 3(3) and k == 1 mod 13(13)

Found Primes: 2619k's - File emailed

Remaining: 31k's - Tested to n=25K - File emailed

Trivial Factor Eliminations: 1660k's

MOB Eliminations: 6K'S - File emailed

Base Released

Mathew · 2011-04-17, 21:00

R338 is complete to n=50K

1 prime

7*338^42867-1

Attached are the results

MyDogBuster · 2011-04-18, 13:28

Riesel Base 352
Conjectured k = 2426
Covering Set = 7, 61, 97
Trivial Factors k == 1 mod 3(3) and k == 1 mod 13(13)

Found Primes: 1468k's - File emailed

Remaining: 22k's - Tested to n=25K - File emailed
k=1764 proven composite by partial algebraic factors

Trivial Factor Eliminations: 932k's

MOB Eliminations: 2k's - File emailed

Base Released

gd_barnes · 2011-04-19, 00:06

Quote:

Originally Posted by MyDogBuster

Riesel Base 352
Conjectured k = 2426
Covering Set = 7, 61, 97
Trivial Factors k == 1 mod 3(3) and k == 1 mod 13(13)

Found Primes: 1468k's - File emailed

Remaining: 22k's - Tested to n=25K - File emailed
k=1764 proven composite by partial algebraic factors

Trivial Factor Eliminations: 932k's

MOB Eliminations: 2k's - File emailed

Base Released

k=1764 is proven composite by partial algebraic factors. That is a difference of squares on even-n and a factor of 353 on odd-n. Therefore 21 k's remain at n=25K.

Mathew · 2011-04-19, 21:50

S492 is complete to n=50K

2 primes found

31*492^30359+1
10*492^42842+1

Continuing to n=100K

Attached are the results

gd_barnes · 2011-04-21, 06:03

Dmitry reported the following statuses in a PM on April 19th:

R444 and S444 are at n=90K, continuing to n=100K
S500 is at n=85K, continuing to n=100K

Primes found:
36*444^44313-1
123*444^51913-1
29*500^25213+1

MyDogBuster · 2011-04-21, 22:16

Reserving S287 & S498 as new to n=25K

MyDogBuster · 2011-04-23, 03:06

Sierp Base 487
Conjectured k = 6772
Covering Set = 7, 13, 19, 37, 61
Trivial Factors k == 1 mod 2(2) and k == 2 mod 3(3)

Found Primes: 2191k's - File emailed

Remaining: 63k's - Tested to n=25K - File emailed

Trivial Factor Eliminations: 1129k's

MOB Eliminations: 2k's - File emailed

Base Released

2011-04-11, 01:01	#738
MyDogBuster May 2008 Wilmington, DE B24₁₆ Posts	R392 R392 tested n=50K-100K - Nothing found Results emailed - Base released

2011-04-13, 02:24	#740
rogue "Mark" Apr 2003 Between here and the 2²·7·227 Posts	Taking S458 (1 k remaining). Last fiddled with by gd_barnes on 2011-04-13 at 06:31 Reason: remove base <= 250

2011-04-15, 01:06	#741
MyDogBuster May 2008 Wilmington, DE 2²·23·31 Posts	R313 Riesel Base 313 Conjectured k = 8634 Covering Set = 5, 97, 157 Trivial Factors k == 1 mod 2(2) and k == 1 mod 3(3) and k == 1 mod 13(13) Found Primes: 2619k's - File emailed Remaining: 31k's - Tested to n=25K - File emailed Trivial Factor Eliminations: 1660k's MOB Eliminations: 6K'S - File emailed Base Released

2011-04-18, 13:28	#743
MyDogBuster May 2008 Wilmington, DE 5444₈ Posts	R352 Riesel Base 352 Conjectured k = 2426 Covering Set = 7, 61, 97 Trivial Factors k == 1 mod 3(3) and k == 1 mod 13(13) Found Primes: 1468k's - File emailed Remaining: 22k's - Tested to n=25K - File emailed k=1764 proven composite by partial algebraic factors Trivial Factor Eliminations: 932k's MOB Eliminations: 2k's - File emailed Base Released

2011-04-21, 22:16	#747
MyDogBuster May 2008 Wilmington, DE 101100100100₂ Posts	Reservations Reserving S287 & S498 as new to n=25K

2011-04-21, 06:03	#746
gd_barnes May 2007 Kansas; USA 2×41×127 Posts	Dmitry reported the following statuses in a PM on April 19th: R444 and S444 are at n=90K, continuing to n=100K S500 is at n=85K, continuing to n=100K Primes found: 36444^44313-1 123444^51913-1 29*500^25213+1

2011-04-23, 03:06	#748
MyDogBuster May 2008 Wilmington, DE 2²·23·31 Posts	S487 Sierp Base 487 Conjectured k = 6772 Covering Set = 7, 13, 19, 37, 61 Trivial Factors k == 1 mod 2(2) and k == 2 mod 3(3) Found Primes: 2191k's - File emailed Remaining: 63k's - Tested to n=25K - File emailed Trivial Factor Eliminations: 1129k's MOB Eliminations: 2k's - File emailed Base Released

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