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msantossilva@sh.itjust.worksM to math@sh.itjust.worksEnglish ·
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3 years ago

Digit Reversal Without Apology

arxiv.org

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Digit Reversal Without Apology

arxiv.org

msantossilva@sh.itjust.worksM to math@sh.itjust.worksEnglish ·
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3 years ago
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In 1966, Alan Sutcliffe published an introductory paper on "numbers which are multiplied when their digits are reversed". Two years later T. J. Kaczynski extended Sutcliffe's work to show that there exists a 3 digit number in base n with this property if and only if there exists a 2 digit base n number with this property. This paper attempts to generalize Kaczynski's proof to the case of 4 and 5 digit integers and explores some unexpected consequences of this generalization.
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  • Oscar Cunningham@lemmy.world
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    3 years ago

    Ah, the famous ‘Better known for other work.’ remark!

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