Re: [PrimeNumbers] Somebody knows this conjecture?
- I wrote:
> Riesel numbers form arithmetic progressions with common differenceTechnical quibbles:
> equal to the product of the primes in the covering set.
> For example, 509203 + b*(3*5*7*13*17*241) is a Riesel number for any b.
1) The above applies to Riesel numbers with a finite covering set.
I think it's unknown whether this is all Riesel numbers.
2) Riesel numbers are odd by definition so throw in a factor 2 in
the common difference.
Jens Kruse Andersen