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 Apr1 awarded Popular Question Sep26 awarded Scholar Sep26 accepted Mistaken counterexample to FLT; where's the mistake? Sep26 awarded Nice Question Sep25 awarded Supporter Sep25 comment Mistaken counterexample to FLT; where's the mistake? Many thanks! I've got the solution, after discarding my original hypothesis about one of the numbers being a prime. Sep25 comment Mistaken counterexample to FLT; where's the mistake? Insight!! I was going completely in the wrong tangent, and thought that the primality of one of the numbers was the key. Sep25 comment Mistaken counterexample to FLT; where's the mistake? Asal: Very true! I'm imagining this in the 1940s, when a computer was still a novelty, and mathematics of this sort could still convene a press conference, just to excuse the short-sightedness of the hotshot. Sep25 comment Mistaken counterexample to FLT; where's the mistake? Steve D: I'm getting the idea that since one of the numbers is prime, it wouldn't be possible. But I'm having trouble expressing that the sum/difference of two $composites^x$ can't equal $prime^x$. Sep25 asked Mistaken counterexample to FLT; where's the mistake? Jul14 awarded Student Jul12 comment Covering with most possible equal size subsets having pairwise singleton intersections Also, $x \approx 10*y$ in my first attempts at solving a specific version of this problem; now I'm trying to generalize it. Jul12 comment Covering with most possible equal size subsets having pairwise singleton intersections Edited as requested. Apologies to all; I knew I had trouble defining the problem clearly, but I couldn't see where the problem was. Jul12 awarded Editor Jul12 revised Covering with most possible equal size subsets having pairwise singleton intersections added 189 characters in body Jul12 asked Covering with most possible equal size subsets having pairwise singleton intersections Apr7 awarded Autobiographer