Monster Group
The highest order Sporadic Group 
. It has Order
and is also called the Friendly Giant Group. It was constructed in 1982 by Robert Griess as a Group of Rotations in 196,883-D space.See also Baby Monster Group, Bimonster, Leech Lattice
References
Conway, J. H.; Curtis, R. T.; Norton, S. P.; Parker, R. A.; and Wilson, R. A. Atlas of Finite Groups: Maximal Subgroups and Ordinary Characters for Simple Groups. Oxford, England: Clarendon Press, p. viii, 1985. Conway, J. H. and Norton, S. P. ``Monstrous Moonshine.'' Bull. London Math. Soc. 11, 308-339, 1979. Conway, J. H. and Sloane, N. J. A. ``The Monster Group and its 196884-Dimensional Space'' and ``A Monster Lie Algebra?'' Chs. 29-30 in Sphere Packings, Lattices, and Groups, 2nd ed. New York: Springer-Verlag, pp. 554-571, 1993. Wilson, R. A. ``ATLAS of Finite Group Representation.''http://for.mat.bham.ac.uk/atlas/html/M.html.
- Kanizsa Triangle
- Kantorovich Inequality
- Kaplan-Yorke Conjecture
- Kaplan-Yorke Dimension
- Kaplan-Yorke Map
- Kappa Curve
- Kaprekar Number
- Kaprekar Routine
- Kaps-Rentrop Methods
- Kapteyn Series
- Karatsuba Multiplication
- k-ary Divisor
- Katona's Problem
- Kauffman Polynomial F
- Kauffman Polynomial X
- k-Chain
- k-Circuit
- k-Coloring
- Kei
- Keith Number
- Keller's Conjecture
- Kelvin Functions
- Kelvin's Conjecture
- Kelvin Transformation
- Kempe Linkage