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Jul 4 at 14:26 history edited LSpice CC BY-SA 4.0
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Jul 4 at 12:02 comment added Peter Taylor Your solution checks out.
Jul 4 at 10:54 comment added joro @PeterTaylor I edited with solution of size 146 digits. You have sharp eye for bugs, would you please confirm or disprove it?
Jul 4 at 10:52 history edited joro CC BY-SA 4.0
Explicit solution of size 146 decimal digits
Jul 3 at 16:42 history edited Michael Hardy CC BY-SA 4.0
added 27 characters in body
Jul 3 at 13:11 history edited joro CC BY-SA 4.0
Added a near miss
Jul 3 at 10:55 comment added Peter Taylor I don't have an intuition either way. Having infinitely many solutions is not sufficient because all of them might have the same obstacle with the stray 2, but it would be quite interesting if that were in fact the case.
Jul 3 at 10:51 comment added joro @PeterTaylor Indeed, you are right, this is a near miss of the oddest prime 2. Do you think my approach may work?
Jul 3 at 10:06 comment added Peter Taylor In the same question, Elkies gives a solution to $X^4 - Y^4$ is powerful, but it's not a solution to this problem solely because $\nu_2(X^2 + Y^2) = 1$.
Jul 3 at 9:58 history answered joro CC BY-SA 4.0