Top network posts

• 14 Integer solutions of $x^3+y^3=z^2$
• 8 Integer solutions of $n^3 = p^2 - p - 1$
• 6 Find $x$ such that $12+13^x$ be a perfect square
• 6 Prove that $(2^n-1)(3^n-1)$ is not a perfect square
• 6 Mordell curves with many integral points
• 6 Are there arbitary large $b$ such that the diophantine equation $a^3-n\cdot b^3=1$ has a solution?
• 5 Is there any infinite set of primes for which membership can be decided quickly?
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