Fermat Quotient
The Fermat quotient for a number 
and a Prime base 
is defined as
 | (1) |
, then |  |  | (2) |
 | |  | (3) |
 | |  | (4) |
all (mod
). The quantity 
is known to be Square for only two Primes: the so-calledWieferich Primes 1093 and 3511 (Lehmer 1981, Crandall 1986).See also Wieferich Prime
References
Crandall, R. Projects in Scientific Computation. New York: Springer-Verlag, 1986. Lehmer, D. H. ``On Fermat's Quotient, Base Two.'' Math. Comput. 36, 289-290, 1981.
- Congruent Incircles Point
- Congruent Isoscelizers Point
- Congruent Numbers
- Congruum
- Congruum Problem
- Conic
- Conical Coordinates
- Conical Frustum
- Conical Function
- Conical Spiral
- Conical Wedge
- Conic Constant
- Conic Double Point
- Conic Equidistant Projection
- Conic Projection
- Conic Section
- Conic Section Tangent
- Conjecture
- Conjugacy Class
- Conjugate Element
- Conjugate Gradient Method
- Conjugate Points
- Conjugate Subgroup
- Conjugation
- Conjunction