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New posts in diophantine-equations
Did Lagrange and/or Lebesgue and/or Lucas solve Ljunggren's equation?
elementary-number-theory
proof-verification
reference-request
diophantine-equations
Find all solutions to $h \pm \sqrt{h^2 - 671} \in \mathbb{Z}$
number-theory
elementary-number-theory
diophantine-equations
Can we find positive integers $a$ and $k \geq 2$ with $2^n - 1 = a^k$? [closed]
elementary-number-theory
diophantine-equations
Determine if $x^3+y^3+z^3+t^3 = 10^{2021}$ has a solution
diophantine-equations
mathematica
When is $\sqrt[3]{a+\sqrt b}+\sqrt[3]{a-\sqrt b}$ an integer? [duplicate]
polynomials
diophantine-equations
radicals
Four squares such that the difference of any two is a square?
number-theory
systems-of-equations
diophantine-equations
pythagorean-triples
Does the equation $y^2=3x^4-3x^2+1$ have an elementary solution?
elementary-number-theory
diophantine-equations
infinite-descent
More elliptic curves for $x^4+y^4+z^4 = 1$?
number-theory
diophantine-equations
elliptic-curves
Integers can be expressed as $a^3+b^3+c^3-3abc$
number-theory
elementary-number-theory
diophantine-equations
Diophantine equation: $7^x=3^y-2$
elementary-number-theory
diophantine-equations
Let $k$ be a postive integer number . Then $2k^2+1$ and $3k^2+1$ cannot both be square numbers.
number-theory
diophantine-equations
pell-type-equations
General quadratic diophantine equation.
algebraic-geometry
diophantine-equations
conic-sections
Solving the following Diophantine equation: $m^2=n^5-5$
number-theory
diophantine-equations
A System of Simultaneous Pell Equations
number-theory
diophantine-equations
pell-type-equations
All positive integer solutions to $\frac{1}{x_1}+\frac{1}{x_2}+\cdots+\frac{1}{x_n}+\frac{1}{x_1 x_2 \cdots x_n}=1$
diophantine-equations
number-theory
For integers $x<y<z$, why are these cases impossible for Mengoli's Six-Square Problem?
diophantine-equations
square-numbers
sums-of-squares
pythagorean-triples
elementary-number-theory
$x^4+y^4=2z^2$ has only solution, $x=y=z=1$ .
elementary-number-theory
diophantine-equations
prove that $x^2 + y^2 = z^4$ has infinitely many solutions with $(x,y,z)=1$
number-theory
diophantine-equations
Can a parallelogram have whole-number lengths for all four sides and both diagonals?
geometry
elementary-number-theory
diophantine-equations
polygons
Find all primes $p$ such that $ p^3-4p+9 $ is a perfect square.
number-theory
diophantine-equations
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