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From: Farley Flud <ff@linux.rocks> Subject: Re: Project Euclid Problem 26 SOLVED!!! Newsgroups: comp.os.linux.advocacy References: <17bb1baebce14546$13883$3298354$802601b3@news.usenetexpress.com> <usidqe$15gr6$2@solani.org> <17bb311956b74503$4$3602787$802601b3@news.usenetexpress.com> <usihki$15j79$1@solani.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Lines: 28 Path: ...!weretis.net!feeder6.news.weretis.net!news.cmpublishers.com!usenet.blueworldhosting.com!diablo1.usenet.blueworldhosting.com!feeder.usenetexpress.com!tr2.iad1.usenetexpress.com!news.usenetexpress.com!not-for-mail Date: Sun, 10 Mar 2024 07:55:28 +0000 Nntp-Posting-Date: Sun, 10 Mar 2024 07:55:28 +0000 X-Received-Bytes: 1477 Organization: UsenetExpress - www.usenetexpress.com X-Complaints-To: abuse@usenetexpress.com Message-Id: <17bb5814623c8cee$5$2906873$802601b3@news.usenetexpress.com> Bytes: 1892 On Sat, 9 Mar 2024 14:42:56 -0600, Physfitfreak wrote: > > I wish there was a chart I could look up, giving denominator integers > (with prime factors other than 2 and 5) as its x axis and max number of > repeating decimals as the y axis. With x interval going to about a > million or even a billion. > Here are plots of the ranges 0-1000 and 0-10000: https://i.postimg.cc/gkkGbtZj/prob26-1k.png https://i.postimg.cc/0PxQCcrL/prob26-10k.png You will need to download these images to view them in an off-line image viewer that will allow scrolling. The second image is 10000x1200 resolution and cannot fit within any monitor. There is a linear increase across the range. This is expected because the Euler totient, which is directly related to the repeat length, for a prime number p = p - 1. Thus there will never be a repeat length of greater magnitude than the number itself.