Brown Numbers
Brown numbers are Pairs 
of Integers satisfying the condition of Brocard'sProblem, i.e., such that
where
is the Factorial and 
is a Square Number. Only three such Pairs of numbersare known: (5,4), (11,5), (71,7), and Erdös conjectured that these are the only three such Pairs.See also Brocard's Problem, Factorial, Square Number, Wilson Prime
References
Guy, R. K. Unsolved Problems in Number Theory, 2nd ed. New York: Springer-Verlag, p. 193, 1994. Pickover, C. A. Keys to Infinity. New York: Wiley, p. 170, 1995.
- Great Snub Icosidodecahedron
- Great Sphere
- Great Stellapentakis Dodecahedron
- Great Stellated Dodecahedron
- Great Stellated Triacontahedron
- Great Stellated Truncated Dodecahedron
- Great Triakis Icosahedron
- Great Triakis Octahedron
- Great Triambic Icosahedron
- Great Truncated Cuboctahedron
- Great Truncated Icosahedron
- Great Truncated Icosidodecahedron
- Grebe Point
- Greedy Algorithm
- Greek Cross
- Greek Problems
- Greene's Method
- Green's Function
- Green's Function--Helmholtz Differential Equation
- Green's Function--Poisson's Equation
- Green's Identities
- Green Space
- Green's Theorem
- Gregory Number
- Gregory's Formula