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Riesel primes of the form 4207•2n-1
Current data
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History
- 2014-10-03: Checked n = 531000 - 851000, William Byerly
- 2014-05-23: Checked n = 310000 - 531000, William Byerly
- 2014-05-18: Checked n = 137000 - 310000, William Byerly
- 2014-05-17: Checked n = 20000 - 137000, William Byerly
- 2014-05-17: Reserved by William Byerly
- 2011-02-07: Checked n = 1 - 20000, Oscar Tutusaus Santandreu
- 2007-07-06: Checked n = 1 - 10000, Gary Barnes
- 1998: Found n = 4369, Yves Gallot
