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    <title>Primenumbers</title>
    <link>https://e-sygoing.link/link/5281709-primenumbers</link>
    <description>Discussion list for those who enjoy prime numbers, primality testing, and closely related subjects.</description>
    <pubDate>Tue, 17 Feb 2026 15:54:51 -0500</pubDate>
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    <title>numbertheory</title>
    <link>https://e-sygoing.link/link/5281707-numbertheory</link>
    <description>Mailing list covering recreational and serious aspects. [Requires free Yahoo membership.]</description>
    <pubDate>Mon, 03 Nov 2025 23:53:19 -0500</pubDate>
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    <title>goldbach</title>
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    <description>Discussion list for the Goldbach Conjecture.</description>
    <pubDate>Mon, 25 Aug 2025 18:25:17 -0400</pubDate>
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    <title>FermatNumbers</title>
    <link>https://e-sygoing.link/link/5281705-fermatnumbers</link>
    <description>A group for aggregating all the known properties of Fermat Numbers F(m)=2^2^m+1 in one place.  Links to distributed search and lists.  Archive available to non-members.</description>
    <pubDate>Mon, 09 Jun 2025 17:14:11 -0400</pubDate>
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    <title>PrimeForm</title>
    <link>https://e-sygoing.link/link/5281708-primeform</link>
    <description>Discussion group for the primality-testing program, PrimeForm. Includes links to the PrimeForm program&#039;s home page, contact and download information.</description>
    <pubDate>Wed, 26 Mar 2025 18:06:01 -0400</pubDate>
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    <title>Archives of Number Theory List</title>
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    <description>Archives of postings to the Number Theory mailing list (NMBRTHRY).</description>
    <pubDate>Mon, 05 Feb 2024 01:48:53 -0500</pubDate>
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