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Williams primes of the form 267•268n-1
Current data
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History
- 2022-10-31: Checked n = 400000 - 500000, (SRBase), Conjectures 'R Us, released
- 2022-09-28: Reserved by (SRBase), Conjectures 'R Us for n = 400000 - 500000
- 2019-08-03: Checked n = 100000 - 400000, (SRBase), Conjectures 'R Us, released
- 2019-06-06: Reserved by (SRBase), Conjectures 'R Us for n = 100000 - 400000
- 2015-10-15: Checked n = 50000 - 100000, (SRBase), Conjectures 'R Us, released
- 2015-10-13: Reserved by (SRBase), Conjectures 'R Us for n = 50000 - 100000
- 2013-11-12: Checked n = 100000 - 200000, Steven Harvey
- 2012-12-08: Checked n = 25000 - 50000, Mathew Steine, released
- 2012-11-12: Reserved by Mathew Steine for n = 25000 - 50000
- 2011-08-09: Checked n = 512 - 100000, Steven Harvey
- 2010-04-30: Checked n = 1 - 25000, Ian M. Gunn, released
- 2010-04-17: Reserved by Ian M. Gunn for n = 1 - 25000
- ?: Checked to n = 512, Steven Harvey
