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Williams primes of the form 27•28n-1
Current data
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History
- 2024-11-04: Checked n = 100000 - 200000, Richard Kapek, released
- 2024-10-19: Reserved by Richard Kapek for n = 100000 - 200000
- 2024-09-25: Checked n = 2 - 100000, Mark Rodenkirch, double-check n = 2 - 25000, released
- 2024-08-19: Reserved by Mark Rodenkirch for n = 2 - 100000
- 2018-03-14: Checked n = 1 - 25000, Eric Chen
- ?: Checked to n = 512, Steven Harvey
