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.
- Major Triangle Center
- Makeham Curve
- Malfatti Circles
- Malfatti Points
- Malfatti's Right Triangle Problem
- Malfatti's Tangent Triangle Problem
- Malliavin Calculus
- Mallow's Sequence
- Malmstén's Differential Equation
- Maltese Cross
- Maltese Cross Curve
- Malthusian Parameter
- Mandelbar Set
- Mandelbrot Set
- Mandelbrot Tree
- Mangoldt Function
- Manifold
- Mantissa
- Map
- Map Coloring
- Mapes' Method
- Map Folding
- Mapping (Function)
- Mapping Space
- Map Projection