Diophantine Equations
- Antimorph
- Antimorphic Number
- Archimedes' Cattle Problem
- Archimedes' Revenge
- Ass and Mule Problem
- Bachet Equation
- Beal's Conjecture
- Brahmagupta's Problem
- Catalan's Conjecture
- Catalan's Diophantine Problem
- Coin Problem
- Concordant Form
- Congruent Number
- Congruum
- Congruum Problem
- Convenient Number
- Diophantine
- Diophantine Equation
- Diophantine Equation--2nd Powers
- Diophantine Equation--3rd Powers
- Diophantine Equation--4th Powers
- Diophantine Equation--5th Powers
- Diophantine Equation--6th Powers
- Diophantine Equation--7th Powers
- Diophantine Equation--8th Powers
- Diophantine Equation--9th Powers
- Diophantine Equation--10th Powers
- Diophantine Equation--nth Powers
- Diophantine Quadruple
- Diophantine Set
- Diophantus Property
- Diophantus's Riddle
- Erdős-Moser Equation
- Erdős-Straus Conjecture
- Euler Brick
- Euler Quartic Conjecture
- Euler's Sum of Powers Conjecture
- Falting's Theorem
- Fermat-Catalan Conjecture
- Fermat Elliptic Curve Theorem
- Fermat Equation
- Fermat's Last Theorem
- Fermat's Sandwich Theorem
- Frobenius Coin Problem
- Frobenius Equation
- Frobenius Number
- Frobenius Postage Stamp Problem
- Frobenius Problem
- Gauss's Cyclotomic Formula
- Generalized Fermat Equation
- Geometric Triple
- Hardy-Ramanujan Number
- Harmonic Triple
- Heronian Tetrahedron
- Hurwitz Equation
- Idoneal Number
- Integer Brick
- Integer Cuboid
- Integer Triangle
- Lagrange Number
- Lucas's Theorem
- Markoff Number
- Markov Equation
- Markov Number
- Method of Exclusions
- Mirimanoff's Congruence
- Monkey and Coconut Problem
- Monomorph
- Mordell Conjecture
- Multigrade Equation
- Pell Equation
- Perfect Cuboid
- Perfect Pyramid
- Perfect Tetrahedron
- Pillai's Conjecture
- Polymorph
- Postage Stamp Problem
- Power Equation
- Prime Diophantine Equations
- Prouhet-Tarry-Escott Problem
- Pythagorean Fraction
- Pythagorean Quadruple
- Pythagorean Triad
- Pythagorean Triangle
- Pythagorean Triple
- Ramanujan-Nagell Equation
- Ramanujan's Square Equation
- Rational Distance Problem
- Rational Distances
- Shafarevich Conjecture
- Square-Triangle Theorem
- Suitable Number
- Thue Equation
- Tijdeman-Zagier Conjecture
- Twin Pythagorean Triple
- Wallis's Problem
- Waring's Conjecture
- Waring's Problem