Difference between revisions of "Riesel prime 2 5"

Latest revision as of 17:14, 25 September 2024

Current data

`k` , `b` :	5 , 2
Count :	51
Nash :	2180
Max `n` :	12,000,000
Date :	2021-10-09

2, 4^[1], 8, 10^[2], 12^[3], 14, 18, 32, 48, 54, 72, 148, 184, 248, 270, 274, 420, 1340, 1438, 1522, 1638, 1754, 1884, 2014, 2170, 2548, 2622, 2652, 2704, 13510, 21738, 25624, 41934, 51478, 52540, 53230, 172300, 245728, 350028, 1194164, 2460482, 3059698, 3090860, 3264650, 3569154, 5429494, 7037188, 7755002, 10349000, 10495620, 11355764

Remarks :

The sequence A001770 in OEIS
See also Williams 5•4ⁿ-1

Notes

History

2021-10-09: Checked n = 10000000 - 12000000, Ryan Propper, released
2021-10-03: Found n = 11355764, Ryan Propper
2021-09-27: Reserved by Ryan Propper for n = 10000000 - 12000000
2021-09-27: Checked n = 6000000 - 10000000, Ryan Propper
2021-09-27: Found n = 10495620, Ryan Propper
2021-09-27: Found n = 10349000, Ryan Propper
2021-09-22: Found n = 7755002, Ryan Propper
2021-09-22: Found n = 7037188, Ryan Propper
2021-09-17: Reserved by Ryan Propper for n = 6000000 - 10000000
2021-09-17: Checked n = 470000 - 1967614, 2100000 - 2366468, 2461800 - 3000000, 3060784 - 3499000, 3646020 - 6000000, RPS Drive K5, released
2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
2017-01-13: Found n = 5429494, Dmitry Domanov, RPS Drive K5
2013-07-08: Found n = 3264650, Carlos Eduardo Pinho, RPS Drive K5
2012-04-11: Found n = 3090860, Michael Curtis, RPS Drive K5
2009-01-18: Checked n = 3499088 - 3646740, Peter Benson ( n = 3646020 - 3646740 also done by RPS Drive K5 )
2009-01-09: Checked n = 2366468 - 2461800, 2995340 - 3060784, Peter Benson ( n = 2995340 - 3000000 also done by RPS Drive K5 )
2009-01-09: Checked n = 950000 - 1091453, 1967614 - 2153808, Peter Benson ( n = 950000 - 1091453 & n = 2100000 - 2153808 also done by RPS Drive K5 )
2009-01-05: Found n = 3569154, Peter Benson
2008-11-24: Found n = 3059698, Peter Benson
2008-11-19: Found n = 2460482, Peter Benson
2008-02-01: Checked n = 1240000 - 1252000, Gary Barnes, RPS Drive K5
2008-01-20: Found n = 1194164, Adam Sutton, Ed Goforth, RPS Drive K5
2007-12-27: Checked n = 1150000 - 1158700, Gary Barnes, RPS Drive K5
2007-10-03: Reserved by RPS Drive K5 from n = 470000
2004-05-03: Checked n = 1 - 313900, Phil Carmody
2004-05-01: Found n = 350028, Phil Carmody
2004-05-01: Found n = 245728, Phil Carmody
1999-12-25: Found n = 172300, Ingo Buechel, Wilfrid Keller
1998-12-18: Found n = 53230, Ingo Buechel, Wilfrid Keller
1998-12-18: Found n = 52540, Ingo Buechel, Wilfrid Keller
1998-12-18: Found n = 51478, Ingo Buechel, Wilfrid Keller
1998-08-31: Found n = 41934, Wilfrid Keller
1998-07-28: Found n = 25624, Wilfrid Keller
1998-05-29: Found n = 21738, Henri Lifchitz

[1] Near Woodall 5•2⁴-1

[2] Woodall 5•4⁵-1, Near Woodall 10•2⁹-1

[3] Near Woodall 10•2¹¹-1

[1]

[2]

[3]

@@ Line 1: / Line 1: @@
-{{Last update|2019-03-26}}
 {{Riesel prime
 |Rk=5
+|Rb=2
+|RCount=51
 |RNash=2180
-|RMaxn=5250000
+|RMaxn=12000000
-|RDate=2019-03-26
+|RDate=2021-10-09
-|RReserved=RPS
+|RReserved=
 |RNlist=
-;C:Near Woodall: (4+1)*2^4-1
+;C:{{NWo|+|4}}
-;C:Near Woodall: (9+1)*2^9-1
+;C:{{NWo|4|5}}, {{NWo|+|9}}
-;C:Near Woodall: (11-1)*2^11-1
+;C:{{NWo|-|11}}
@@ Line 53: / Line 54: @@
 3569154;86152
 5429494;122731
-|RRemarks=[https://www.mersenneforum.org/showthread.php?p=115599#post115599 Forum thread] at [[MersenneForum]]
+7037188;132732
+7755002;132733
+10349000;132755
+10495620;132756
+11355764;132782
+|RRemarks=The {{OEIS|l|A001770}}<br>See also {{NWi|PM|4|n}}
 }}
+==History==
+{{HistC|2021-10-09|10000000-12000000|Ryan Propper|590039}}, released
+{{HistF|2021-10-03|11355764|Ryan Propper|589259}}
+{{HistR|2021-09-27|Ryan Propper|588859}} for {{Rn|10000000|12000000}}
+{{HistC|2021-09-27|6000000-10000000|Ryan Propper|588859}}
+{{HistF|2021-09-27|10495620|Ryan Propper|588851}}
+{{HistF|2021-09-27|10349000|Ryan Propper|588851}}
+{{HistF|2021-09-22|7755002|Ryan Propper|588408}}
+{{HistF|2021-09-22|7037188|Ryan Propper|588408}}
+{{HistR|2021-09-17|Ryan Propper|588079}} for {{Rn|6000000|10000000}}
+{{HistC|2021-09-17|470000-1967614, 2100000-2366468, 2461800-3000000, 3060784-3499000, 3646020-6000000|RPS Drive K5|588017}}, released
+{{HistC|2021-03-21|1-1000000|Gary Barnes|574248}}, double check, results included
+{{HistF|2017-01-13|5429494|Dmitry Domanov,RPS Drive K5|468819}}
+{{HistF|2013-07-08|3264650|Carlos Eduardo Pinho,RPS Drive K5|345646}}
+{{HistF|2012-04-11|3090860|Michael Curtis,RPS Drive K5|296182}}
+{{HistC|2009-01-18|3499088-3646740|Peter Benson|159287}} ( {{Rn|3646020|3646740}} also done by [[RPS Drive K5]] )
+{{HistC|2009-01-09|2366468-2461800, 2995340-3060784|Peter Benson|157761}} ( {{Rn|2995340|3000000}} also done by [[RPS Drive K5]] )
+{{HistC|2009-01-09|950000-1091453, 1967614-2153808|Peter Benson|157761}} ( {{Rn|950000|1091453}} & {{Rn|2100000|2153808}} also done by [[RPS Drive K5]] )
+{{HistF|2009-01-05|3569154|Peter Benson|156921}}
+{{HistF|2008-11-24|3059698|Peter Benson|150491}}
+{{HistF|2008-11-19|2460482|Peter Benson|149860}}
+{{HistC|2008-02-01|1240000-1252000|Gary Barnes, RPS Drive K5|124465}}
+{{HistF|2008-01-20|1194164|Adam Sutton,Ed Goforth,RPS Drive K5|123302}}
+{{HistC|2007-12-27|1150000-1158700|Gary Barnes, RPS Drive K5|121662}}
+{{HistR|2007-10-03|RPS Drive K5|115599}} from {{Rn|470000|470000}}
+{{HistC|2004-05-03|1-313900|Phil Carmody|27811}}
+{{HistF|2004-05-01|350028|Phil Carmody|27608}}
+{{HistF|2004-05-01|245728|Phil Carmody|27608}}
+{{HistF|1999-12-25|172300|Ingo Buechel,Wilfrid Keller}}
+{{HistF|1998-12-18|53230|Ingo Buechel,Wilfrid Keller}}
+{{HistF|1998-12-18|52540|Ingo Buechel,Wilfrid Keller}}
+{{HistF|1998-12-18|51478|Ingo Buechel,Wilfrid Keller}}
+{{HistF|1998-08-31|41934|Wilfrid Keller}}
+{{HistF|1998-07-28|25624|Wilfrid Keller}}
+{{HistF|1998-05-29|21738|Henri Lifchitz}}

Difference between revisions of "Riesel prime 2 5"

Latest revision as of 17:14, 25 September 2024

Current data

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History

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