Quote:
Originally Posted by KEP
Sierpinski base: 1023
1.: 13,61,1321 (covering no/yes?)
k: 632462
Exponent: 6
Kenneth!

A covering set means that there must be an elements of the set that divides 632462*1023^n+1, for any n. Occasionally there are more elements in that list than you strictly need. For this example you would have that
1321 divides 632462*1023^(3q+1)+1
61 divides 632462*1023^(3q+2)+1
13 divides 632462*1023^(3q+3)+1
covering all values of n.
Willem.