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Hauptverfasser: Gejima, Kohta, Takamizo, Fumichika
Format: Preprint
Veröffentlicht: 2025
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Online-Zugang:https://arxiv.org/abs/2509.21948
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author Gejima, Kohta
Takamizo, Fumichika
author_facet Gejima, Kohta
Takamizo, Fumichika
contents We prove that the sequence of the last nonzero digits of factorials in every integer base $b>2$ is not eventually periodic. We also extend the Adamczewski--Bugeaud criterion, originally formulated for integer base expansions, to Cantor base expansions associated with a periodic Cantor base. As an application, we show that a certain real number expressed through a Cantor base expansion is transcendental when the Cantor base and the digit sequence satisfy suitable conditions.
format Preprint
id arxiv_https___arxiv_org_abs_2509_21948
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Non-periodicity of the sequence of the last nonzero digits of factorials and its applications to transcendence
Gejima, Kohta
Takamizo, Fumichika
Number Theory
We prove that the sequence of the last nonzero digits of factorials in every integer base $b>2$ is not eventually periodic. We also extend the Adamczewski--Bugeaud criterion, originally formulated for integer base expansions, to Cantor base expansions associated with a periodic Cantor base. As an application, we show that a certain real number expressed through a Cantor base expansion is transcendental when the Cantor base and the digit sequence satisfy suitable conditions.
title Non-periodicity of the sequence of the last nonzero digits of factorials and its applications to transcendence
topic Number Theory
url https://arxiv.org/abs/2509.21948