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In mathematics, A set S is a multiplicative set if xy is in S whenever x and y both are in S.

Given a ring R, a multiplicative subset S of R is a multiplicative set such that 1 is in S.

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Topics: Multiplicative Set, Multiplicative Function...

Multiplicative functionIn number theory, a multiplicative function is an arithmetic function f ''n of the positive integer n with the property that f 1) 1 and whenever a and b are coprime, then f ''ab f ''a f ''b . An arithmetic function f ''n is said to be completely (totally)	Multiplicative setIn mathematics, A set S is a multiplicative set if xy is in S whenever x and y both are in S. Given a ring R, a multiplicative subset S of R is a multiplicative set such that 1 is in S.	Multiplicative orderModular arithmetic In number theory, given an integer a and a positive integer n with gcd a ''n 1, the multiplicative order of a modulo n is the smallest positive integer k with : a k ≡ 1 ( modulo n . The order of a modulo n is usually written ord a
Multiplicative groupIn mathematics, multiplicative group in group theory may mean any group G written in multiplicative notation (rather than additive notation for an abelian group) for its binary operation or in particular the multiplicative group of a field F namely F {0}	Multiplicative group of integers modulo nIn mathematics, the multiplicative group of integers modulo n is the the group defined by multiplication of the units in the ring : for a given integer n > 1. The order of the group is given by Euler's totient function. Where is prime, the order of the gr