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Multiplicative function
From Number
Revision as of 23:12, 28 April 2009 by Vipul(talk | contribs)(Created page with '==Definition== Let <math>f</math> be a function from the set of natural numbers to a commutative unital ring <math>R</math>. We say that <math>f</math> is '''multiplicat...')
Let be a function from the set of natural numbers to a commutative unital ring. We say that is multiplicative if, whenever and are relatively prime natural numbers, we have:
