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arxiv: 2011.01099 · v3 · pith:A4MYHPILnew · submitted 2020-11-02 · 🧮 math.NT

On the solutions of certain Lebesgue-Ramanujan-Nagell equations

classification 🧮 math.NT
keywords casecertaincompletelydiophantinedirectionearlierell19equation
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We completely solve the Diophantine equation $x^2+2^k11^\ell19^m=y^n$ in integers $x,y\geq 1;~ k,\ell, m\geq 0~$ and $n\geq 3$ with $\gcd(x,y)=1$, except the case $2\mid k, 2\nmid \ell m$ and $5\mid n$. We use this result to recover some earlier results in the same direction.

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