New Fermat number divisor!
 

Just received a mail from Payam Samidoost:

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After a long search I have finally found a new Fermat divisor:

89*2^472099+1 which divides F472097.
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I think it may interest those of you involved in Fermat numbers factoring.

Sorry for cross-posting in Factoring

Luigi

W00t! About time! :-D