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	<id>https://michaelnielsen.org/polymath/index.php?action=history&amp;feed=atom&amp;title=Prime_gaps</id>
	<title>Prime gaps - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://michaelnielsen.org/polymath/index.php?action=history&amp;feed=atom&amp;title=Prime_gaps"/>
	<link rel="alternate" type="text/html" href="https://michaelnielsen.org/polymath/index.php?title=Prime_gaps&amp;action=history"/>
	<updated>2026-04-13T15:53:14Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.42.3</generator>
	<entry>
		<id>https://michaelnielsen.org/polymath/index.php?title=Prime_gaps&amp;diff=2351&amp;oldid=prev</id>
		<title>Asdf: replace an external link with an interwiki link</title>
		<link rel="alternate" type="text/html" href="https://michaelnielsen.org/polymath/index.php?title=Prime_gaps&amp;diff=2351&amp;oldid=prev"/>
		<updated>2009-08-19T23:39:50Z</updated>

		<summary type="html">&lt;p&gt;replace an external link with an interwiki link&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 16:39, 19 August 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l11&quot;&gt;Line 11:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 11:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# R. C. Baker and G. Harman, “The difference between consecutive primes,” Proc. Lond. Math. Soc., series 3, 72 (1996) 261–280. MR 96k:11111&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# R. C. Baker and G. Harman, “The difference between consecutive primes,” Proc. Lond. Math. Soc., series 3, 72 (1996) 261–280. MR 96k:11111&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# K. Soundararajan, [http://arxiv.org/abs/math/0605696 Small gaps between prime numbers: The work of Goldston-Pintz-Yildirim]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# K. Soundararajan, [http://arxiv.org/abs/math/0605696 Small gaps between prime numbers: The work of Goldston-Pintz-Yildirim]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# [&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;http&lt;/del&gt;:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;//en.wikipedia.org/wiki/&lt;/del&gt;Prime_gap The Wikipedia entry on prime gaps]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# [&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[wikipedia&lt;/ins&gt;:Prime_gap&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|&lt;/ins&gt;The Wikipedia entry on prime gaps&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]&lt;/ins&gt;]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Asdf</name></author>
	</entry>
	<entry>
		<id>https://michaelnielsen.org/polymath/index.php?title=Prime_gaps&amp;diff=2267&amp;oldid=prev</id>
		<title>Teorth at 13:50, 9 August 2009</title>
		<link rel="alternate" type="text/html" href="https://michaelnielsen.org/polymath/index.php?title=Prime_gaps&amp;diff=2267&amp;oldid=prev"/>
		<updated>2009-08-09T13:50:11Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 06:50, 9 August 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l5&quot;&gt;Line 5:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A recent result of Goldston-Pintz-Yildirim shows that there exist infinitely many n for which the gap is as small as &amp;lt;math&amp;gt;o(\log p_n)&amp;lt;/math&amp;gt; (in fact more precise bounds are known).  But the set of small gaps established by this method is sparse.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A recent result of Goldston-Pintz-Yildirim shows that there exist infinitely many n for which the gap is as small as &amp;lt;math&amp;gt;o(\log p_n)&amp;lt;/math&amp;gt; (in fact more precise bounds are known).  But the set of small gaps established by this method is sparse.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Cramer&#039;s conjecture]] asserts that the prime gap never exceeds &amp;lt;math&amp;gt;O(\log^2 p_n)&amp;lt;/math&amp;gt; in size.  If so, this resolves the [[finding primes]] project positively.  However, the best upper bound on the prime gap is &amp;lt;math&amp;gt;O( p_n^{1/2} \log p_n )&amp;lt;/math&amp;gt; assuming the Riemann hypothesis, and &amp;lt;math&amp;gt;O( p_n^{0.&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;535&lt;/del&gt;} )&amp;lt;/math&amp;gt; otherwise (a result of Baker and Harman).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Cramer&#039;s conjecture]] asserts that the prime gap never exceeds &amp;lt;math&amp;gt;O(\log^2 p_n)&amp;lt;/math&amp;gt; in size.  If so, this resolves the [[finding primes]] project positively.  However, the best upper bound on the prime gap is &amp;lt;math&amp;gt;O( p_n^{1/2} \log p_n )&amp;lt;/math&amp;gt; assuming the Riemann hypothesis, and &amp;lt;math&amp;gt;O( p_n^{0.&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;525&lt;/ins&gt;} )&amp;lt;/math&amp;gt; otherwise (a result of &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Baker, Harman, and Pintz; an earlier bound of &amp;lt;math&amp;gt;O(p_n^{0.535})&amp;lt;/math&amp;gt; was obtained by &lt;/ins&gt;Baker and Harman&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;.&lt;/ins&gt;).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Rankin showed that the prime gap can be as large as &amp;lt;math&amp;gt;\log p_n \frac{\log \log p_n \log \log \log \log p_n}{(\log \log \log p_n)^3}&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Rankin showed that the prime gap can be as large as &amp;lt;math&amp;gt;\log p_n \frac{\log \log p_n \log \log \log \log p_n}{(\log \log \log p_n)^3}&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Teorth</name></author>
	</entry>
	<entry>
		<id>https://michaelnielsen.org/polymath/index.php?title=Prime_gaps&amp;diff=2252&amp;oldid=prev</id>
		<title>Teorth at 17:59, 8 August 2009</title>
		<link rel="alternate" type="text/html" href="https://michaelnielsen.org/polymath/index.php?title=Prime_gaps&amp;diff=2252&amp;oldid=prev"/>
		<updated>2009-08-08T17:59:59Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
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				&lt;col class=&quot;diff-marker&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 10:59, 8 August 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l11&quot;&gt;Line 11:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 11:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# R. C. Baker and G. Harman, “The difference between consecutive primes,” Proc. Lond. Math. Soc., series 3, 72 (1996) 261–280. MR 96k:11111&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# R. C. Baker and G. Harman, “The difference between consecutive primes,” Proc. Lond. Math. Soc., series 3, 72 (1996) 261–280. MR 96k:11111&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# K. Soundararajan, [http://arxiv.org/abs/math/0605696 Small gaps between prime numbers: The work of Goldston-Pintz-Yildirim]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# K. Soundararajan, [http://arxiv.org/abs/math/0605696 Small gaps between prime numbers: The work of Goldston-Pintz-Yildirim]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;# [http://en.wikipedia.org/wiki/Prime_gap The Wikipedia entry on prime gaps]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Teorth</name></author>
	</entry>
	<entry>
		<id>https://michaelnielsen.org/polymath/index.php?title=Prime_gaps&amp;diff=2250&amp;oldid=prev</id>
		<title>Teorth: New page: If &lt;math&gt;p_n&lt;/math&gt; denotes the n^th prime, then &lt;math&gt;p_{n+1}-p_n&lt;/math&gt; is the n^th prime gap.  On average, the prime number theorem tells us that &lt;math&gt;p_{n+1}-p_n&lt;/math&gt; has size &lt;math...</title>
		<link rel="alternate" type="text/html" href="https://michaelnielsen.org/polymath/index.php?title=Prime_gaps&amp;diff=2250&amp;oldid=prev"/>
		<updated>2009-08-08T17:58:54Z</updated>

		<summary type="html">&lt;p&gt;New page: If &amp;lt;math&amp;gt;p_n&amp;lt;/math&amp;gt; denotes the n^th prime, then &amp;lt;math&amp;gt;p_{n+1}-p_n&amp;lt;/math&amp;gt; is the n^th prime gap.  On average, the prime number theorem tells us that &amp;lt;math&amp;gt;p_{n+1}-p_n&amp;lt;/math&amp;gt; has size &amp;lt;math...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;If &amp;lt;math&amp;gt;p_n&amp;lt;/math&amp;gt; denotes the n^th prime, then &amp;lt;math&amp;gt;p_{n+1}-p_n&amp;lt;/math&amp;gt; is the n^th prime gap.&lt;br /&gt;
&lt;br /&gt;
On average, the prime number theorem tells us that &amp;lt;math&amp;gt;p_{n+1}-p_n&amp;lt;/math&amp;gt; has size &amp;lt;math&amp;gt;O(\log p_n)&amp;lt;/math&amp;gt;.  &lt;br /&gt;
&lt;br /&gt;
A recent result of Goldston-Pintz-Yildirim shows that there exist infinitely many n for which the gap is as small as &amp;lt;math&amp;gt;o(\log p_n)&amp;lt;/math&amp;gt; (in fact more precise bounds are known).  But the set of small gaps established by this method is sparse.&lt;br /&gt;
&lt;br /&gt;
[[Cramer&amp;#039;s conjecture]] asserts that the prime gap never exceeds &amp;lt;math&amp;gt;O(\log^2 p_n)&amp;lt;/math&amp;gt; in size.  If so, this resolves the [[finding primes]] project positively.  However, the best upper bound on the prime gap is &amp;lt;math&amp;gt;O( p_n^{1/2} \log p_n )&amp;lt;/math&amp;gt; assuming the Riemann hypothesis, and &amp;lt;math&amp;gt;O( p_n^{0.535} )&amp;lt;/math&amp;gt; otherwise (a result of Baker and Harman).&lt;br /&gt;
&lt;br /&gt;
Rankin showed that the prime gap can be as large as &amp;lt;math&amp;gt;\log p_n \frac{\log \log p_n \log \log \log \log p_n}{(\log \log \log p_n)^3}&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
# R. C. Baker and G. Harman, “The difference between consecutive primes,” Proc. Lond. Math. Soc., series 3, 72 (1996) 261–280. MR 96k:11111&lt;br /&gt;
# K. Soundararajan, [http://arxiv.org/abs/math/0605696 Small gaps between prime numbers: The work of Goldston-Pintz-Yildirim]&lt;/div&gt;</summary>
		<author><name>Teorth</name></author>
	</entry>
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