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Difference between revisions of "Cullen prime 7"

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(hist.)
(double-check to n=100K)
 
(5 intermediate revisions by 4 users not shown)
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{{Cullen prime
 
{{Cullen prime
 
|CuBase=7
 
|CuBase=7
|CuMaxn=255681
+
|CuMaxn=2000000
|CuDate=2023-04-28
+
|CuDate=2024-10-25
|CuReserved=Mark Rodenkirch
+
|CuReserved=
 
|CuNlist=
 
|CuNlist=
 
34
 
34
 
1980;38360
 
1980;38360
 
9898;19216;C:{{NPr|202|7|9900}}
 
9898;19216;C:{{NPr|202|7|9900}}
 +
474280
 
|CuRemarks=The {{OEIS|l|A242177}}
 
|CuRemarks=The {{OEIS|l|A242177}}
 
}}
 
}}
 
==History==
 
==History==
{{HistR|2023-04-28|Mark Rodenkirch|629610}} to {{Vn}}=500000
+
{{HistC|2024-10-25|1-100000|Gary Barnes|1058845}}, double-check, released
{{HistC|2023-04-23|2-100000|Mark Rodenkirch}}, double-checked
+
{{HistC|2023-07-14|500000-2000000|Ryan Propper|858785}}, released
 +
{{HistR|2023-07-04|Ryan Propper|858168}} for {{Rn|500000|2000000}}
 +
{{HistC|2023-05-28|100000-500000|Mark Rodenkirch|856012}}, double-check {{Rn|100000|255681}}, released
 +
{{HistF|2023-05-28|474280|Mark Rodenkirch|856012}}
 +
{{HistR|2023-04-28|Mark Rodenkirch|851725}} to {{Rn|500000|500000}}
 +
{{HistC|2023-04-23|2-100000|Mark Rodenkirch}}, double-check
 +
{{HistC|2005|27927-255681|Günter Löh}}
 +
{{HistC|2000|4415-27927|Wilfrid Keller}}
 
{{HistF|1998-11-13|9898|Wilfrid Keller}}
 
{{HistF|1998-11-13|9898|Wilfrid Keller}}
{{HistF|1990-01-01|1980|Harvey Dubner}}
+
{{HistC|1989|1-4415|Harvey Dubner}}
 +
{{HistF|1989|1980|Harvey Dubner}}

Latest revision as of 05:11, 29 October 2024

Current data

ASCII format : n*7^n+1
Base : 7
Count : 4
Max n : 2,000,000
Date : 2024-10-25
34, 1980, 9898[1], 474280
Remarks :
The sequence A242177 in OEIS

Notes

History