Thursday, 24 January 2008

FermatSearch

The FERMATSEARCH.ORG (searching for factors of Fermat numbers) project has a new and improved website!
http://www.fermatsearch.org/index.html
Its most recently found factor (August 21, 2007) was:
"485.2^338297+1 divides F338295"
Note that for really huge Fermats like this, the only efficient method of searching for factors is modular trial-division. However there is also some ECM work going on on the smaller Fermats... It will be interesting to see cooperation with the new Primenet (factorization) server?

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