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A Note on Giuga's Conjecture

  Published:2007-03-01
 Printed: Mar 2007
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Abstract

Let $G(X)$ denote the number of positive composite integers $n$ satisfying $\sum_{j=1}^{n-1}j^{n-1}\equiv -1 \tmod{n}$. Then $G(X)\ll X^{1/2}\log X$ for sufficiently large $X$.
MSC Classifications: 11A51 show english descriptions Factorization; primality 11A51 - Factorization; primality
 

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