Current data
[[Category:Riesel {{{Rb}}}|#.....00253]][[Category:Riesel {{{Rb}}} Low-weight|#.....00253]]
History
- 2020-03-11: Checked to n = 6000000, Dmitry Domanov
- 2015-05-06: Checked to n = 5000000, Dmitry Domanov
- 2013-09-30: Checked to n = 4000000, Dmitry Domanov
- 2013-09-03: Checked to n = 3990000, Dmitry Domanov
- 2012-12-30: Found n = 1965215, Dmitry Domanov, doublechecked
- 2012-09-19: Checked to n = 3000000, Dmitry Domanov
- 2010-03-14: Reserved by Dmitry Domanov
- 2007-07-23: Checked n = 1165000 - 1750000, Predrag Minovic
- 2007-04-20: Found n = 1722623, Predrag Minovic
- 1998-11-26: Found n = 27623, Wilfrid Keller