ANU Computer Science Technical Reports
Richard P. Brent, Richard E. Crandall, and Karl Dilcher.
Two new factors of Fermat numbers.
[POSTSCRIPT (112002 bytes)]
Abstract: We report the discovery of new 27-decimal
digit factors of the thirteenth and sixteenth Fermat numbers. Each of the new
factors was found by the elliptic curve method. After division by the new
factors and other known factors, the quotients are seen to be composite
numbers with 2,391 and 19,694 decimal digits respectively.
Technical Reports <Technical.Reports@cs.anu.edu.au>
Last modified: Wed May 28 15:30:09 EST 1997