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Difference between revisions of "Free-DC Drive 2"
(correct suspension date & add info regarding high-weight drive) |
(note excluded range, additional info & observations) |
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{{Stub}} | {{Stub}} | ||
==Purpose== | ==Purpose== | ||
| − | Searching for [[Riesel prime]]s for {{Rk|6000|7000}} from {{Rn|410000|410000}} excluding {{Vk}}'s reserved by others. Total 378 {{Vk}}'s not specified. | + | Searching for top-5000 [[Riesel prime]]s for {{Rk|6000|7000}} from {{Rn|410000|410000}} excluding {{Vk}}'s reserved by others. Total 378 {{Vk}}'s not specified. |
*Started: [https://www.free-dc.org/showthread.php?19023 2009-05-28]. | *Started: [https://www.free-dc.org/showthread.php?19023 2009-05-28]. | ||
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==Notes== | ==Notes== | ||
| − | The | + | The drive formally omitted {{Rn|485000|490000}} per the final statement of [https://www.free-dc.org/showthread.php?19811#post138591 this post]. The project was known to skip forward {{Vn}}-ranges to keep primes in the top-5000 but often this was not stated. |
| − | The post [https://www.free-dc.org/showthread.php?26443#post149249 here] refers to the high-weight drive | + | An unusually small number of primes were reported in the {{Rn|530000|550000}} range. This likely extends to the {{Rn|520000|560000}} range. Some {{Vn}}-ranges were likely skipped for the above reason. |
| + | |||
| + | The suspended date is the final reported [[Free-DC's Prime Search|Free-DC]] prime where '''{{Vn}} ≤ 560000''' shown in the [https://www.free-dc.org/showthread.php?19811#post146112 2nd Drive thread] and reported at [https://t5k.org/primes/page.php?id=93051 top-5000 primes]. | ||
| + | |||
| + | The post [https://www.free-dc.org/showthread.php?26443#post149249 here] refers to the high-weight drive that was run on the same port as Drive 2. The drive was restricted to high-weight {{Vk}}'s only. The ranges searched were {{Rk|3400|4000}} & {{Rk|6000|7000}} for about {{Rn|700000|800000}} and {{Rk|7000|8000}} for about {{Rn|750000|1000000}}. The drive began on 2010-12-11 and was suspended on 2011-04-27. | ||
==Primes found== | ==Primes found== | ||
Revision as of 05:24, 23 January 2025
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Contents
[hide]Purpose
Searching for top-5000 Riesel primes for k = 6000 - 7000 from n = 410000 excluding k's reserved by others. Total 378 k's not specified.
- Started: 2009-05-28.
Status
- Suspended: About 2010-06-06 at approximately n = 560000.
Notes
The drive formally omitted n = 485000 - 490000 per the final statement of this post. The project was known to skip forward n-ranges to keep primes in the top-5000 but often this was not stated.
An unusually small number of primes were reported in the n = 530000 - 550000 range. This likely extends to the n = 520000 - 560000 range. Some n-ranges were likely skipped for the above reason.
The suspended date is the final reported Free-DC prime where n ≤ 560000 shown in the 2nd Drive thread and reported at top-5000 primes.
The post here refers to the high-weight drive that was run on the same port as Drive 2. The drive was restricted to high-weight k's only. The ranges searched were k = 3400 - 4000 & k = 6000 - 7000 for about n = 700000 - 800000 and k = 7000 - 8000 for about n = 750000 - 1000000. The drive began on 2010-12-11 and was suspended on 2011-04-27.
