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2011-04-23, 15:31
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#749 |
May 2008
Wilmington, DE
22·23·31 Posts |
S352
Sierp Base 352
Conjectured k = 7990 Covering Set = 3, 61, 97 Trivial Factors k == 2 mod 3(3) and k == 12 mod 13(13) Found Primes: 4868k's - File emailed Remaining: 40k's - Tested to n=25K - File emailed Trivial Factor Eliminations: 3073k's MOB Eliminations: 6k's - File emailed GFN: 1k - File emailed 352 Base Released |
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2011-04-25, 14:36
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#750 |
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Just call me Henry
"David"
Sep 2007
Cambridge (GMT/BST)
10110111111112 Posts |
reserving R360 to 25k as new
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2011-04-25, 18:45
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#751 | |
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Just call me Henry
"David"
Sep 2007
Cambridge (GMT/BST)
7·292 Posts |
Quote:
529*360^n-1 1444*360^n-1 3481*360^n-1 all have algebraic factors(difference of squares) on the even side. The odd side can't be removed. I assume I have everything. Srsieve told me about these. Last fiddled with by henryzz on 2011-04-25 at 18:51 |
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2011-04-25, 19:46
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#752 | |
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Just call me Henry
"David"
Sep 2007
Cambridge (GMT/BST)
133778 Posts |
Quote:
40*360^n-1 640*360^n-1 have algebraic factors(difference of squares) on odd side. The even side can't be removed. |
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2011-04-25, 19:54
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#753 |
May 2007
Kansas; USA
2×41×127 Posts |
R360 does not have any k's that can be removed due to full or partial algebraic factors. You can remove any even n's or odd n's from your sieve file if just the one side (odd or even) contains algebraic factors but the k's will still have to be searched.
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2011-04-25, 19:59
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#754 |
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May 2008
Wilmington, DE
22×23×31 Posts |
S335
S335 tested 100K-200K - Nothing found
Results emailed - Base released |
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2011-04-28, 19:18
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#755 |
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May 2008
Wilmington, DE
22×23×31 Posts |
R398
R398 tested n=100K-200K - Nothing found
Results emailed - Base released |
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2011-04-28, 22:07
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#756 |
Jun 2008
Wollongong, .au
3·61 Posts |
S387
Whilst the neverending S928 tests grind on, I'll take S387 out for a look. 47 k-values remaining at n=1000.
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2011-04-29, 05:16
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#757 |
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May 2007
Kansas; USA
2·41·127 Posts |
Serge reported in an Email dated April 28th the following statuses:
S257 is at n=183K, continuing to n=200K S406 is at n=155.3K, continuing to n=160K S461 is at n=187K, continuing to n=200K S467 is at n=202.7K, continuing to n=210K No primes to report. |
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2011-04-29, 15:48
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#758 |
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May 2008
Wilmington, DE
22×23×31 Posts |
Reservations
Reserving the following 1kers to n=200K
R362 S263 S428 |
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2011-05-03, 23:46
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#759 |
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May 2008
Wilmington, DE
22·23·31 Posts |
S287
Sierp Base 287
Conjectured k = 7142 Covering Set = 3, 5, 17, 457 Trivial Factors k == 1 mod 2(2) and k == 10 mod 11(11) and k == 12 mod 13(13) Found Primes: 2860k's - File emailed Remaining: 130k's - Tested to n=25K - File emailed Trivial Factor Eliminations: 575k's MOB Eliminations: 5k's - File emailed Base Released |
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