منابع مشابه
Repunit Lehmer numbers
A Lehmer number is a composite positive integer n such that φ(n) | n− 1. In this paper, we show that given a positive integer g > 1 there are at most finitely many Lehmer numbers which are repunits in base g, and they are all effectively computable. Our method is effective and we illustrate it by showing that there is no such Lehmer number when g ∈ [2, 1000]. 2000 Mathematics Subject Classifica...
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ژورنال
عنوان ژورنال: Acta Arithmetica
سال: 2009
ISSN: 0065-1036,1730-6264
DOI: 10.4064/aa137-3-3