뫼비우스 함수
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개요
- 산술함수
- 정의
\[ \mu(n) = \begin{cases} 1 & \text{if \(n\] is a square-free positive integer with an even number of prime factors} \\ -1 & \text{if <math>n\) is a square-free positive integer with an odd number of prime factors} \\ 0 & \text{if \(n\) has a squared prime factor} \\ \end{cases} </math>
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