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Difference between revisions of "Proth prime 2 289"
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|Pk=289 | |Pk=289 | ||
|Pb=2 | |Pb=2 | ||
| − | |PCount= | + | |PCount=21 |
|PNash=990 | |PNash=990 | ||
| − | |PMaxn= | + | |PMaxn=5000000 |
| − | |PDate= | + | |PDate=2024-04-30 |
|PReserved= | |PReserved= | ||
| − | |PMultiRes | + | |PMultiRes |
|PNlist= | |PNlist= | ||
10 | 10 | ||
| Line 29: | Line 29: | ||
1317378;103905 | 1317378;103905 | ||
1522650;110774 | 1522650;110774 | ||
| − | |PRemarks= | + | 4911870;137913 |
| + | |PRemarks=The {{OEIS|l|A053361}}<br>For all {{Vn}}-values {{Kbn|+|289|2|n}} is a [[Generalized Fermat number]]. | ||
|PSieve= | |PSieve= | ||
}} | }} | ||
==History== | ==History== | ||
| + | {{HistC|2024-04-30|5000000|PrimeGrid Proth Prime Search}} | ||
| + | {{HistF|2024-04-01|4911870|Stefan Larsson,PrimeGrid Proth Prime Search}} | ||
| + | {{HistC|2019-07|3322000-3640000|PrimeGrid Proth Mega Prime Search}} | ||
{{HistF|2013-01-20|1522650|Grzegorz Granowski,PrimeGrid Proth Prime Search}} | {{HistF|2013-01-20|1522650|Grzegorz Granowski,PrimeGrid Proth Prime Search}} | ||
{{HistF|2012-01-11|1317378|Tim Rickard,PrimeGrid Proth Prime Search}} | {{HistF|2012-01-11|1317378|Tim Rickard,PrimeGrid Proth Prime Search}} | ||
Latest revision as of 21:00, 13 September 2024
Current data
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Remarks : |
The sequence A053361 in OEIS For all n-values 289•2n+1 is a Generalized Fermat number. |
Notes
- ↑ Is GF Divisor of xGF(31,10,3)
- ↑ Is GF Divisor of xGF(41,11,8)
- ↑ Is GF Divisor of xGF(148,12,5)
- ↑ Cullen, Cullen 18496•218496+1
- ↑ Is GF Divisor of xGF(989181,3,2)
History
- 2024-04-30: Checked to n = 5000000, PrimeGrid Proth Prime Search
- 2024-04-01: Found n = 4911870, Stefan Larsson, PrimeGrid Proth Prime Search
- 2019-07: Checked n = 3322000 - 3640000, PrimeGrid Proth Mega Prime Search
- 2013-01-20: Found n = 1522650, Grzegorz Granowski, PrimeGrid Proth Prime Search
- 2012-01-11: Found n = 1317378, Tim Rickard, PrimeGrid Proth Prime Search
- 2011-11-29: Found n = 1117182, Alison Bowler, PrimeGrid Proth Prime Search
- 2010-10-25: Found n = 989182, Steven Harvey, PrimeGrid Proth Prime Search
- 2009-04-18: Found n = 638902, Lukas Hron, PrimeGrid Proth Prime Search
- 2007-04-23: Found n = 333406, Rüdiger K. Eckhard
- 2005-02-20: Found n = 252858, Jim Fougeron
- 2004-12-28: Found n = 207546, Jim Fougeron
- 2003-01-09: Found n = 194830, Greg Childers
- 1999-12-22: Found n = 102150, Rüdiger K. Eckhard
- 1998-10-26: Found n = 52614, Daval Davis
- 1996-03: Found n = 6706, Patrick Demichel
- 1984: Found n = 18502, Wilfrid Keller
