Jeroen Demeyer on Tue, 18 Dec 2007 23:42:07 +0100


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My "fullfactor" package


Hello list,

I have developed a complete GP package with some functions related to factoring. In particular, it contains the Cunningham tables with factors of b^e - 1 for "small" b and e.

The package + help can be found at
http://cage.ugent.be/~jdemeyer/fullfactor/

An important remark is that it needs a recent CVS version of GP, because it uses CLOSUREs.


Example:
? fullfactor(3^(6*97)-1, factor_cyclo)
time = 116 ms.
%1 =
[2 3]

[7 1]

[13 1]

[76631 1]

[189733 1]

[1693621 1]

[80640757 1]

[459991849 1]

[503803759819 1]

[2549755542947 1]

[184812684901540537 1]

[9594160501626613625431 1]

[1989549405617260510054951 1]

[20591603926857377806745611 1]

[48845962828028421155731228333 1]

[2726865189058261010774960798134976187171462721 1]

[5852407890668586529163364311233328351058899596487336893 1]