k-ary Divisor
Let a Divisor 
of 
be called a 1-ary divisor if 
. Then is called a 
-ary divisor of ,written 
, if the Greatest Common 
-ary divisor of and 
is 1.
In this notation, 
is written 
, and 
is written 
. 
is an Infinary Divisorof 
(with 
) if 
.
References
Guy, R. K. Unsolved Problems in Number Theory, 2nd ed. New York: Springer-Verlag, p. 54, 1994.
- Evolute
- Exact Covering System
- Exact Differential
- Exactly One
- Exactly When
- Exact Period
- Exact Trilinear Coordinates
- Excenter
- Excenter-Excenter Circle
- Excentral Triangle
- Excess
- Excess Coefficient
- Excessive Number
- Excircle
- Excision Axiom
- Excluded Middle Law
- Excludent
- Excludent Factorization Method
- Exclusive Or
- Exeter Point
- Exhaustion Method
- Existence
- Existential Closure
- Exists
- Exmedian