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Difference between revisions of "Williams prime MM 5"

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m (Karbon moved page Williams prime base 5 to Williams prime 1st 5 without leaving a redirect: name)
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==Definition==
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{{Williams prime
[[Williams prime]]s {{Kbn|(b-1)|b|n}} with ''b'' = 5 ([[prime]]s of the form {{Kbn|4|5|n}}, ''n'' ≥ 1).
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|WiBase=5
 
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|WiMaxn=1000000
==Prime for ''n''==
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|WiDate=2019-04-04
1, 3, 9, 13, 15, 25, 39, 69, 165, 171, 209, 339, 2033, 6583, 15393, 282989, 498483, 504221, {{PP|125947|754611}}, {{PP|126245|864751}}
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|WiReserved=
 
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|WiNlist=
==Search range==
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1
''n'' = 1000000 (2019-04-04)
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3
 
+
9
 +
13
 +
15
 +
25
 +
39
 +
69
 +
165
 +
171
 +
209
 +
339
 +
2033
 +
6583
 +
15393
 +
282989
 +
498483
 +
504221
 +
754611;125947
 +
864751;126245
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|WiRemarks=
 +
}}
 
==History==
 
==History==
 
{|class="wikitable"
 
{|class="wikitable"

Revision as of 16:33, 8 April 2019

Current data

Base : 5
Count : 20
Max n : 1,000,000
Date : 2019-04-04
1, 3, 9, 13, 15, 25, 39, 69, 165, 171, 209, 339, 2033, 6583, 15393, 282989, 498483, 504221, 754611, 864751

History

Date Remark
2019-04-04 Checked to n = 1000000, Karsten Bonath
2019-02-23 found n = 864751, Karsten Bonath
2019-01-27 found n = 754611, Karsten Bonath
2018-12-24 found n = 504221, Karsten Bonath
2018-12-23 found n = 498483, Karsten Bonath
2018-12-06 Checked to n = 1 - 321000, found n = 282989, Karsten Bonath
2007-20-12 Checked to n = 200000, Geoff Reynolds
2007-07-13 Checked to n = 110000, Geoff Reynolds
2006-08 Found n = 15393, antiroach
1981 Checked to n = 500, found n = 1 ... 339, H. C. Williams

External links