I am trying to solve how an integer is simultaneously that is simultaneously a square and a cube number must be either of the form 7k or 7k+1 and im failing when i work (7k+2)^2, even (7k+3)^2.............Can i interpret 7k+1 as 7k+(-1), i think i cant but then i fail in many steps!! Also i know that any square number can be expressed as 3k or 3k+1...IS THERE SOMETHING SIMILAR FOR THE CUBIC PLEASE?(adsbygoogle = window.adsbygoogle || []).push({});

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# More Div.Alg.

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