| 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 "Williams prime MM 3"
(Broadhurst hist) |
(reserved from template) |
||
| Line 1: | Line 1: | ||
| − | |||
{{Last update|2019-04-14}} | {{Last update|2019-04-14}} | ||
{{Williams prime | {{Williams prime | ||
Revision as of 19:15, 28 April 2019
| Last update: 2019-04-14 |
| Reserved! This sequence is currently reserved by: Borys Jaworski |
Current data
|
|
History
- 2015-07-31: Found n = 1360104, Borys Jaworski, Riesel Prime Search
- 2012-02-12: Found n = 1063844, Borys Jaworski, Riesel Prime Search
- 2011-09-01: Found n = 1010743, Borys Jaworski, Riesel Prime Search
- 2009-04-12: Checked n to 570000, David Broadhurst
- 2009-03-09: Checked n = 189000 to 400000, David Broadhurst
- 2004-08-15: Found n = 147488, Ingo Buechel, Wilfrid Keller
- 2004-08-12: Found n = 143552, Ingo Buechel, Wilfrid Keller
- 2003-06-20: Found n = 128295, Ingo Buechel, Wilfrid Keller
- 2001-09-28: Found n = 90012, Wilfrid Keller
- 2001-08-12: Found n = 75551, Wilfrid Keller
- 2001-06-30: Found n = 49340, Wilfrid Keller
- 1972: Found n = 1 ... 222, H.C.Williams, C.R.Zarnke
External links
- Active search, last update post #72
- The sequence A003307 in OEIS
- H.C.Williams, C.R.Zarnke: "Some prime numbers of the forms 2A3^n+1 and 2A3^n-1" Math. Comp. 26 (1972), 995-998
