| Currently there may be errors shown on top of a page, because of a missing Wiki update (PHP version and extension DPL3). |
Navigation
| Topics | Help • Register • News • History • How to • Sequences statistics • Template prototypes |
Difference between revisions of "Riesel prime 2 19401"
(Adding forum post ID) |
(temp fix) |
||
| (10 intermediate revisions by 2 users not shown) | |||
| Line 2: | Line 2: | ||
|Rk=19401 | |Rk=19401 | ||
|Rb=2 | |Rb=2 | ||
| − | |RCount= | + | |RCount=16 |
|RNash=1081 | |RNash=1081 | ||
| − | |RMaxn= | + | |RMaxn=1000000 |
| − | |RDate= | + | |RDate=2023-12-07 |
|RReserved= | |RReserved= | ||
|RMultiRes= | |RMultiRes= | ||
| Line 23: | Line 23: | ||
18335 | 18335 | ||
31353 | 31353 | ||
| − | 3086450;119999 | + | 297509 |
| − | |RRemarks=Tested to | + | 3086450;119999;C:{{NRi|19401|4|1543225}} |
| − | |RSieve= | + | |RRemarks=Tested to {{Vn}}=3086450 only even values, see [[Liskovets-Gallot conjectures]].<br>For even-{{Vn}}, also see 19401*4^{{Vn}}-1. |
| + | |RSieve=y | ||
}} | }} | ||
==History== | ==History== | ||
| + | {{HistC|2023-12-07|600000-1000000, odd {{Vn}} only|Alexander Jones}} | ||
| + | {{HistC|2023-03-23|500000-600000, odd {{Vn}} only|Alexander Jones}} | ||
| + | {{HistS|2023-03-14|600000-3100000 (all {{Vn}}), 150000-600000 (even {{Vn}} only)|Alexander Jones,yoyo@home}} | ||
| + | {{HistC|2022-03-31|300000-500000, odd {{Vn}} only|Alexander Jones}} | ||
| + | {{HistC|2022-01-10|150000-300000, odd {{Vn}} only|Alexander Jones}} | ||
| + | {{HistC|2021-12-22|150000|Alexander Jones}} | ||
{{HistF|2015-06-13|3086450|Gary Barnes,CRUS Liskovets-Gallot|403997}} | {{HistF|2015-06-13|3086450|Gary Barnes,CRUS Liskovets-Gallot|403997}} | ||
| + | {{HistC|2015-04-29|3000000 (only even {{Vn}})|(PRPnet port 1400),Conjectures 'R Us|401213}} | ||
| + | {{HistR|2014-09-20|(PRPnet port 1400),Conjectures 'R Us|383520}}, for even {{Vn}}>2000000 | ||
| + | {{HistC|2011-08-10|2000000 (only even {{Vn}})|(PRPnet port 1300),Conjectures 'R Us|268815}}, released | ||
| + | {{HistC|2011-05-13|1400000 (only even {{Vn}})|(PRPnet port 1300),Conjectures 'R Us|261353}} | ||
| + | {{HistR|2011-02-07|(PRPnet port 1300),Conjectures 'R Us|251709}} | ||
| + | {{HistC|2011-02-02|1200000 (only even {{Vn}})|Karsten Bonath|251089}}, released | ||
| + | {{HistC|2010-06-27|1200000 (only even {{Vn}})|Karsten Bonath|220003}} | ||
| + | {{HistC|2010-03-28|1136000 (only even {{Vn}})|Karsten Bonath|209840}} | ||
| + | {{HistC|2009-04-10|1126000 (only even {{Vn}})|Karsten Bonath|168754}} | ||
| + | {{HistC|2008-12-11|964000 (only even {{Vn}})|Karsten Bonath|152878}} | ||
| + | {{HistC|2008-06-15|437000 (only even {{Vn}})|Karsten Bonath|135962}} | ||
| + | {{HistC|2008-05-04|385000 (only even {{Vn}})|Karsten Bonath|132716}} | ||
| + | {{HistC|2008-04-05|379000 (only even {{Vn}})|Karsten Bonath|130850}} | ||
| + | {{HistC|2008-02-14|300000 (only even {{Vn}})|Karsten Bonath|125820}} | ||
{{HistC|2008-01-19|132000|Karsten Bonath}} | {{HistC|2008-01-19|132000|Karsten Bonath}} | ||
| + | {{HistC|2008-01-10|262578 (only even {{Vn}})|Jean Penné|122583}} | ||
| + | {{HistR|2007-12-19|Jean Penné|121063}} | ||
Latest revision as of 00:42, 31 May 2024
Current data
|
|
Remarks : |
Tested to n=3086450 only even values, see Liskovets-Gallot conjectures. For even-n, also see 19401*4^n-1. |
Notes
History
- 2023-12-07: Checked n = 600000-1000000, odd n only, Alexander Jones
- 2023-03-23: Checked n = 500000-600000, odd n only, Alexander Jones
- 2023-03-14: Sieve file created: n = 600000-3100000 (all n), 150000-600000 (even n only), Alexander Jones, yoyo@home
- 2022-03-31: Checked n = 300000-500000, odd n only, Alexander Jones
- 2022-01-10: Checked n = 150000-300000, odd n only, Alexander Jones
- 2021-12-22: Checked to n = 150000, Alexander Jones
- 2015-06-13: Found n = 3086450, Gary Barnes, CRUS Liskovets-Gallot
- 2015-04-29: Checked to n = 3000000 (only even n), (PRPnet port 1400), Conjectures 'R Us
- 2014-09-20: Reserved by (PRPnet port 1400), Conjectures 'R Us, for even n>2000000
- 2011-08-10: Checked to n = 2000000 (only even n), (PRPnet port 1300), Conjectures 'R Us, released
- 2011-05-13: Checked to n = 1400000 (only even n), (PRPnet port 1300), Conjectures 'R Us
- 2011-02-07: Reserved by (PRPnet port 1300), Conjectures 'R Us
- 2011-02-02: Checked to n = 1200000 (only even n), Karsten Bonath, released
- 2010-06-27: Checked to n = 1200000 (only even n), Karsten Bonath
- 2010-03-28: Checked to n = 1136000 (only even n), Karsten Bonath
- 2009-04-10: Checked to n = 1126000 (only even n), Karsten Bonath
- 2008-12-11: Checked to n = 964000 (only even n), Karsten Bonath
- 2008-06-15: Checked to n = 437000 (only even n), Karsten Bonath
- 2008-05-04: Checked to n = 385000 (only even n), Karsten Bonath
- 2008-04-05: Checked to n = 379000 (only even n), Karsten Bonath
- 2008-02-14: Checked to n = 300000 (only even n), Karsten Bonath
- 2008-01-19: Checked to n = 132000, Karsten Bonath
- 2008-01-10: Checked to n = 262578 (only even n), Jean Penné
- 2007-12-19: Reserved by Jean Penné
