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Generalized Woodall primes of the form `n`•87ⁿ-1

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Revision as of 20:10, 22 October 2024 by Gd barnes (talk | contribs) (add & correct history, add twin)

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Current data

ASCII format :	n*87^n-1
Base :	87
Count :	6
Max `n` :	350,000
Date :	2023-07-23

2^[1], 30, 42, 240, 5826, 148306

Notes

↑ Twin n=2

History

2023-07-23: Checked n = 4000 - 26000?, (puadz), double-check
2023-07-03: Reserved by (puadz), double-check
2019-03-20: Checked n = 177000 - 350000, Steven Harvey
2018-12-11: Reserved by Steven Harvey to n = 350000
2014-03-13: Checked to n = 25000, Steven Harvey
2012?: Checked n = 150000 - 177000, James P. Burt
2012-01-12: Checked n = 26000 - 150000, James P. Burt
2012-01-11: Found n = 148306, James P. Burt
2010-11-01: Checked n = 86 - 4000, Steven Harvey, double-check
2005-01-03: Checked n = 5000 - 10000, Mark Rodenkirch
2004-12-21: Reserved by Mark Rodenkirch to n = 10000
2004-12-21: Checked n = 86 - 5000, Mark Rodenkirch
2004-12-15: Reserved by Mark Rodenkirch to n = 6000
2004-12-03: Reserved by Mark Rodenkirch to n = 5000
2004-06-21: Checked to n = 26000, Steven Harvey
2000-04-03: Found n = 5826, Jason Alexander Zaruba

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Woodall prime