On Sun, 19 Sep 1999, Lucas Wiman wrote:
> All (and especially Chris),
>
> Yesterday (and the day before), I went to the Illinois number theory conference.
> There (2nd talk of yesterday) J. P. Selfridge announced that he would
> give away $1000 US for any factor found of a number which ought to be
> prime (he provided a list). On that list was 2^(2^31-1)-1.
I will check with him on what he meant--I notice at least one other number
on his list is already factored. I will post the revised list here as
soon as I get it.
Chris
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