mersenneforum.org - View Single Post - Sierpinski and Riesel number (Fixed k, Variable base)

Citrix · 2007-01-10, 09:53

Has there been any work done to find S/R for fixed k and variable base?

eg. What is the lowest base=b for k=2 such that 2*b^n+1 is never prime?

What k's can never be sierpinski numbers? Is there any proof to this.

How does one generate the sierpinski base for a given k?

(The same questions for Riesel side)

2007-01-10, 09:53	#1
Citrix Jun 2003 1,579 Posts	Sierpinski and Riesel number (Fixed k, Variable base) Has there been any work done to find S/R for fixed k and variable base? eg. What is the lowest base=b for k=2 such that 2*b^n+1 is never prime? What k's can never be sierpinski numbers? Is there any proof to this. How does one generate the sierpinski base for a given k? (The same questions for Riesel side)