# Category:Unsolved problems in mathematics

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Here is a list of articles in the category **Unsolved problems in mathematics** of the Computing portal that unifies foundations of mathematics and computations using computers. This category is intended for all unsolved problems in mathematics, including conjectures. Conjectures are qualified by having a suggested or proposed hypothesis. There may or may not be conjectures for all unsolved problems.

## Subcategories

This category has the following 2 subcategories, out of 2 total.

### C

## Pages in category "Unsolved problems in mathematics"

The following 200 pages are in this category, out of 243 total.

(previous page) (next page)- List of unsolved problems in mathematics
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### *

- List of unsolved problems in statistics
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### A

- Abc conjecture
*(computing)* - Abundance conjecture
*(computing)* - Agoh–Giuga conjecture
*(computing)* - Albertson conjecture
*(computing)* - Andrews–Curtis conjecture
*(computing)* - Andrica's conjecture
*(computing)* - Arnold–Givental conjecture
*(physics)* - Artin's conjecture on primitive roots
*(computing)* - Atiyah conjecture on configurations
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### B

- Balanced prime
*(computing)* - Barnette's conjecture
*(computing)* - Bass conjecture
*(computing)* - Bateman–Horn conjecture
*(computing)* - Baum–Connes conjecture
*(computing)* - Beal conjecture
*(computing)* - Beggar-my-neighbour
*(computing)* - Bellman's lost in a forest problem
*(computing)* - Bing–Borsuk conjecture
*(computing)* - Birch–Tate conjecture
*(computing)* - Bloch's theorem (complex variables)
*(computing)* - Bombieri–Lang conjecture
*(computing)* - Borel conjecture
*(computing)* - Brocard's conjecture
*(computing)* - Brocard's problem
*(computing)* - Brouwer's conjecture
*(computing)* - Brumer–Stark conjecture
*(computing)* - Bunyakovsky conjecture
*(computing)* - Burnside problem
*(computing)*

### C

- Carathéodory conjecture
*(computing)* - Carmichael's totient function conjecture
*(computing)* - Carol number
*(computing)* - Casas-Alvero conjecture
*(computing)* - Chern's conjecture (affine geometry)
*(computing)* - Chern's conjecture for hypersurfaces in spheres
*(computing)* - Class number problem
*(computing)* - Clifford's theorem on special divisors
*(computing)* - Congruent number
*(computing)* - Connes embedding problem
*(computing)* - Constant problem
*(computing)* - Conway's 99-graph problem
*(computing)* - Cousin prime
*(computing)* - Covering problem of Rado
*(computing)* - Covering system
*(computing)* - Cramér's conjecture
*(computing)* - Crouzeix's conjecture
*(computing)* - Cuboid conjectures
*(computing)* - Cullen number
*(computing)* - Cycle double cover
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### D

- Dickson's conjecture
*(computing)* - Discrepancy of hypergraphs
*(computing)* - Discrepancy theory
*(computing)* - Dissection into orthoschemes
*(computing)* - Divisor summatory function
*(computing)* - Dixmier conjecture
*(computing)* - Double Mersenne number
*(computing)*

### E

- Eilenberg–Ganea conjecture
*(computing)* - Einstein problem
*(computing)* - Elliott–Halberstam conjecture
*(computing)* - Erdős conjecture on arithmetic progressions
*(computing)* - Erdős–Faber–Lovász conjecture
*(computing)* - Erdős–Gyárfás conjecture
*(computing)* - Erdős–Hajnal conjecture
*(computing)* - Erdős–Straus conjecture
*(computing)* - Erdős–Turán conjecture on additive bases
*(computing)* - Erdős–Ulam problem
*(computing)* - Erdős on Graphs
*(computing)* - Erdős–Moser equation
*(computing)* - Euclid number
*(computing)* - Euclid–Mullin sequence
*(computing)* - Euler brick
*(computing)* - Euler–Mascheroni constant
*(computing)*

### F

- Falconer's conjecture
*(computing)* - Farrell–Jones conjecture
*(computing)* - Feit–Thompson conjecture
*(computing)* - Fermat number
*(computing)* - Fermat–Catalan conjecture
*(computing)* - Fibonacci prime
*(computing)* - Filling area conjecture
*(computing)* - Finite lattice representation problem
*(computing)* - Firoozbakht's conjecture
*(computing)* - Four exponentials conjecture
*(computing)* - Friendly number
*(computing)* - Fröberg conjecture
*(computing)* - Fujita conjecture
*(computing)*

### G

- Gauss circle problem
*(computing)* - Gaussian moat
*(computing)* - Generalized Riemann hypothesis
*(computing)* - Gilbreath's conjecture
*(computing)* - Gillies' conjecture
*(computing)* - Giuga number
*(computing)* - GNRS conjecture
*(computing)* - Goldbach's conjecture
*(computing)* - Goormaghtigh conjecture
*(computing)* - Grand Riemann hypothesis
*(computing)* - Greenberg's conjectures
*(computing)* - Grimm's conjecture
*(computing)* - Grothendieck–Katz p-curvature conjecture
*(computing)* - Gyárfás–Sumner conjecture
*(computing)*

### H

- Hadamard matrix
*(computing)* - Hadamard's maximal determinant problem
*(computing)* - Hadwiger conjecture (combinatorial geometry)
*(computing)* - Hadwiger conjecture (graph theory)
*(computing)* - Hadwiger–Nelson problem
*(computing)* - Hall's conjecture
*(computing)* - Harborth's conjecture
*(computing)* - Hermite's problem
*(computing)* - Herzog–Schönheim conjecture
*(computing)* - Hilbert's ninth problem
*(computing)* - Hilbert's sixteenth problem
*(computing)* - Hilbert's fifteenth problem
*(computing)* - Hilbert–Pólya conjecture
*(computing)* - Hilbert–Smith conjecture
*(computing)* - Homological conjectures in commutative algebra
*(computing)* - Hopf conjecture
*(computing)*

### I

- Idoneal number
*(computing)* - Inscribed square problem
*(computing)* - Invariant subspace problem
*(computing)* - Inverse Galois problem
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### J

- Jacobian conjecture
*(computing)* - Jacobson's conjecture
*(computing)* - Juggler sequence
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### K

- Kaplansky's conjectures
*(computing)* - Kobon triangle problem
*(computing)* - Köthe conjecture
*(computing)* - Kummer–Vandiver conjecture
*(computing)* - Kynea number
*(computing)*

### L

- Landau's constants
*(computing)* - Landau's problems
*(computing)* - Lander, Parkin, and Selfridge conjecture
*(computing)* - Lebesgue's universal covering problem
*(computing)* - Legendre's conjecture
*(computing)* - Lehmer's conjecture
*(computing)* - Lehmer's totient problem
*(computing)* - Lemoine's conjecture
*(computing)* - Leopoldt's conjecture
*(computing)* - Lindelöf hypothesis
*(computing)* - List of problems in loop theory and quasigroup theory
*(computing)* - Littlewood conjecture
*(computing)* - Lonely runner conjecture
*(computing)* - Lovász conjecture
*(computing)* - Lucas number
*(computing)* - Lychrel number
*(computing)*

### M

- Magic square
*(computing)* - Manin conjecture
*(computing)* - Map folding
*(computing)* - McMullen problem
*(computing)* - Mean value problem
*(computing)* - Mersenne conjectures
*(computing)* - Mersenne prime
*(computing)* - Minimum overlap problem
*(computing)* - Montgomery's pair correlation conjecture
*(computing)* - Moser's worm problem
*(computing)* - Moving sofa problem
*(computing)*

### N

- N conjecture
*(computing)* - Nakai conjecture
*(computing)* - Navier–Stokes existence and smoothness
*(computing)* - New digraph reconstruction conjecture
*(computing)* - Newman's conjecture
*(computing)* - Newman–Shanks–Williams prime
*(computing)* - Novikov conjecture
*(computing)*

### O

- Oberwolfach problem
*(computing)* - Odd greedy expansion
*(computing)* - Open Problems in Mathematics
*(computing)* - Oppermann's conjecture
*(computing)*

### P

- P versus NP problem
*(computing)* - Palindromic prime
*(computing)* - Pell number
*(computing)* - Perfect number
*(computing)* - Pierce–Birkhoff conjecture
*(computing)* - Pierpont prime
*(computing)* - Polignac's conjecture
*(computing)* - Pollock's conjectures
*(computing)* - Pompeiu problem
*(computing)* - Prime quadruplet
*(computing)* - Prime triplet
*(computing)* - Problems in Latin squares
*(computing)* - Problems involving arithmetic progressions
*(computing)*

### Q

- Quasiperfect number
*(computing)*

### R

- Reconstruction conjecture
*(computing)* - Redmond–Sun conjecture
*(computing)* - Regular prime
*(computing)* - Resolution of singularities
*(computing)* - Riemann hypothesis
*(computing)* - Riesel number
*(computing)* - Rota's basis conjecture
*(computing)*

### S

- Sato–Tate conjecture
*(computing)* - Schanuel's conjecture
*(computing)* - Schinzel's hypothesis H
*(computing)* - Scholz conjecture
*(computing)* - Second Hardy–Littlewood conjecture
*(computing)* - Second neighborhood problem
*(computing)* - Section conjecture
*(computing)* - Sendov's conjecture
*(computing)* - Serre's conjecture II (algebra)
*(computing)* - Serre's multiplicity conjectures
*(computing)* - Sexy prime
*(computing)* - Sierpinski number
*(computing)* - Singmaster's conjecture
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