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Difference between revisions of "Riesel 4 Riesel"
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Latest revision as of 05:00, 24 June 2024
Riesel numbers base 4 are numbers where k !≡ 0 mod 4 for which k•4n-1 is composite for all natural numbers n and has a finite covering set of two or more distinct factors.
See also
- OEIS sequence A251757 is a subset of these numbers.
Table
There are 3 sequences in this Wiki:
| k | Covering set |
|---|---|
| 39939 | [5, 7, 13, 19, 73, 109] |
| 56169 | [5, 7, 13, 17, 241] |
| 345354 | [5, 7, 13, 17, 241] |
Riesel primes
| Base = 2 : |
| Miscellaneous |
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| Others |
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| Other bases |
