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Is it possible to compute the Moebius function without factoring?

It has been well known since Fermat's Little Theorem was first published that it is possible to determine that a number is composite without determining any of its nontrivial factors. It is natural to ask whether it is also possible to compute the Moebius function of a composite number without determining any of its nontrivial factors. In this note, we argue that this is impossible.

preprint2011arXivOpen access
Craig Alan Feinstein
math.GM
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Craig Alan Feinstein

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