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New posts in diophantine-equations
Solving a homogeneous quadratic equation in three variables over the integers.
number-theory
elementary-number-theory
diophantine-equations
quadratics
conic-sections
Natural number solutions to $\frac{xy}{x+y}=n$ (equivalent to $\frac 1x+\frac 1y=\frac 1n$)
elementary-number-theory
diophantine-equations
Erdős-Straus conjecture
number-theory
reference-request
diophantine-equations
conjectures
How to solve these two simultaneous "divisibilities" : $n+1\mid m^2+1$ and $m+1\mid n^2+1$
number-theory
elementary-number-theory
divisibility
diophantine-equations
congruences
Curves triangular numbers.
number-theory
diophantine-equations
Integer solutions of $xy+9(x+y)=2006$ [Completing a product / rectangle]
elementary-number-theory
diophantine-equations
Diophantine equation $a^2+b^2=c^2+d^2$
elementary-number-theory
diophantine-equations
sums-of-squares
Solutions to $ax^2 + by^2 = cz^2$
number-theory
diophantine-equations
Pythagorean triples that "survive" Euler's totient function
number-theory
diophantine-equations
totient-function
pythagorean-triples
How to find solutions of linear Diophantine ax + by = c?
elementary-number-theory
diophantine-equations
linear-diophantine-equations
$x^y = y^x$ for integers $x$ and $y$
number-theory
diophantine-equations
exponentiation
Linear diophantine equation $100x - 23y = -19$
elementary-number-theory
modular-arithmetic
diophantine-equations
euclidean-algorithm
linear-diophantine-equations
Find five positive integers whose reciprocals sum to $1$
elementary-number-theory
diophantine-equations
fractions
egyptian-fractions
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