--- Paul Jobling <Paul.Jobling@...
> > According to Dickson, HotToN, Euler proved Fermat divisors are
> > k.2^(n+1)+1, and it was only Lucas that pushed the exponent up to
> > n+2.
> > Other sources state that Euler did it all by himself.
> AFAIK, that is correct - Lucas pushed it to n+2; Euler used n+1.
> The primepages attribute n+2 to Euler;
It's not the only place that does, I forget where the other places
> but see
> http://www.fermatsearch.org/history/lucas1891.html, where Lucas
> states that Euler used n+1, but his result allows n+2 to be used.
Horses mouth, eh?
In some ways we're still left with the trichotomy of whether he's a
bold blaggard, mistaken, or right. However, I think only a direct
Euler citation would trump the claim.
Thanks for the excellent ferreting, Paul.
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