On 14 déc, 21:52, quasi <qu...@null.set> wrote: > On Tue, 14 Dec 2010 12:25:06 -0800 (PST), Deep <deepk...@yahoo.com> > wrote: > > >Consider (1) below > > >x^2 -y^2 = ek^2 (1) > > >Question: Is it possible for (1) to have solutions under the given > >conditions? > > >Conditions: x, y are coprime, each is odd and > 1, e is an even > >integer > 1, k is a prime > 3 > > Yes, easy. > > For example, x=27, y=23, e=8, k=5. > > quasi
I can't find any example with k > 7 Have you got one ?