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Composite Fermat number

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Revision as of 19:58, 20 April 2009 by Vipul (talk | contribs) (Created page with '==Definition== A '''composite Fermat number''' is a Fermat number that is also a composite number, i.e., it is not a Fermat prime. ==Relation with other properties== ===We...')

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Definition

A composite Fermat number is a Fermat number that is also a composite number, i.e., it is not a Fermat prime.

Relation with other properties

Weaker properties

Composite Proth number
Poulet number: It is a Fermat pseudoprime to the base $2$ .
Strong pseudoprime to base $2$ .

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