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Old 2008-12-30, 17:35   #1
Artifex
 

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Default new prime number?

2^4294967296 + 1
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Old 2008-12-30, 22:42   #2
akruppa
 
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"Nancy"
Aug 2002
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This is the 32nd Fermat number which has a known factor, see http://www.prothsearch.net/fermat.html

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Old 2008-12-31, 07:58   #3
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Default new prime number

Merci de ta réponse et désolé pour le dérangement.
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