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Difference between revisions of "Cullen prime 2"

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(double-check to n=100K)
 
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{{Cullen prime
 
{{Cullen prime
 
|CuBase=2
 
|CuBase=2
|CuMaxn=17000000
+
|CuMaxn=25000000
|CuDate=2019-04-28
+
|CuDate=2024-10-25
|CuReserved=PrimeGrid
+
|CuReserved=PrimeGrid Cullen Prime Search
 
|CuNlist=
 
|CuNlist=
 
1
 
1
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5795;38112
 
5795;38112
 
6611;37374
 
6611;37374
18496;23436;C:{{Kbn|+|289|2|18502}}, [[Gen. Fermat]]
+
18496;23436;C:{{NPr|289|18502}}, [[Generalized Fermat number]]
32292;17877;C:{{Kbn|+|8073|2|32294}}
+
32292;17877;C:{{NPr|8073|32294}}
 
32469;17850
 
32469;17850
59656;10752;C:{{Kbn|+|7457|2|59659}}
+
59656;10752;C:{{NPr|7457|59659}}
 
90825;5931
 
90825;5931
 
262419;271
 
262419;271
 
361275;102
 
361275;102
 
481899;77
 
481899;77
1354828;75433;C:{{Kbn|+|338707|2|1354830}}
+
1354828;75433;C:{{NPr|338707|1354830}}
6328548;87775;C:{{Kbn|+|1582137|2|6328550}}
+
6328548;87775;C:{{NPr|1582137|6328550}}
 
6679881;89536
 
6679881;89536
 
|CuRemarks=The {{OEIS|l|A005849}}<br>[http://www.primegrid.com/stats_cullen_llr.php Current status] at [[PrimeGrid]]
 
|CuRemarks=The {{OEIS|l|A005849}}<br>[http://www.primegrid.com/stats_cullen_llr.php Current status] at [[PrimeGrid]]
 
}}
 
}}
 
==History==
 
==History==
{{HistF|2009-08-04|6679881|Magnus Bergman,PrimeGrid}}
+
{{HistC|2024-10-25|1-100000|Gary Barnes|1058845}}, double-check, released
{{HistF|2009-04-20|6328548|Dennis R. Gesker,PrimeGrid}}
+
{{HistC|2021-09-11|21000000|PrimeGrid Cullen Prime Search}}
 +
{{HistF|2009-08-04|6679881|Magnus Bergman,PrimeGrid Cullen Prime Search}} ([https://www.primegrid.com/download/cullen-6679881.pdf Official announcement])
 +
{{HistF|2009-04-20|6328548|Dennis R. Gesker,PrimeGrid Cullen Prime Search}} ([https://www.primegrid.com/download/cullen-6328548.pdf Official announcement])
 
{{HistF|2005-08-25|1354828|Mark Rodenkirch}}
 
{{HistF|2005-08-25|1354828|Mark Rodenkirch}}
 
{{HistF|1998-09-30|481899|Masakatu Morii}}
 
{{HistF|1998-09-30|481899|Masakatu Morii}}
Line 38: Line 40:
 
{{HistF|1984|5795|Wilfrid Keller}}
 
{{HistF|1984|5795|Wilfrid Keller}}
 
{{HistF|1984|4713|Wilfrid Keller}}
 
{{HistF|1984|4713|Wilfrid Keller}}
{{HistF|1957|141|Raphael Robinson}}
+
{{HistF|1957|141|Raphael M. Robinson}}
 
{{HistF|1905|1|James Cullen}}
 
{{HistF|1905|1|James Cullen}}
 
{{DISPLAYTITLE:Cullen primes {{Kbn|+|n|2|n}}|noerror}}
 
{{DISPLAYTITLE:Cullen primes {{Kbn|+|n|2|n}}|noerror}}

Latest revision as of 05:01, 29 October 2024

Reserved! This sequence is currently reserved by: PrimeGrid Cullen Prime Search

Current data

ASCII format : n*2^n+1
Base : 2
Count : 16
Max n : 25,000,000
Date : 2024-10-25
Reserved : PrimeGrid Cullen Prime SearchPrimeGrid Cullen Prime Search/Reserved
1, 141, 4713, 5795, 6611, 18496[1], 32292[2], 32469, 59656[3], 90825, 262419, 361275, 481899, 1354828[4], 6328548[5], 6679881
Remarks :
The sequence A005849 in OEIS
Current status at PrimeGrid

Notes

History