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Factorizations of Near-repdigit Numbers
Factorizations of numbers composed of all the same digit except first and/or last.
Fermat Search
Leonid Durman's Fermat number factoring site and program.
The XYYXF Project
A collaborative project to produce the factorizations of x^y + y^x for 1
Factorization of RSA-155
FactorWorld
Factoring Papers
Sam Wagstaff
Robinson Primes
I Love Binary, Primes, and Factors
RSA Laboratories Factoring Challenge
More Factoring Sites
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Factorization of RSA-155
Announcement of factorization of a 512-bit RSA key using the General Number Field Sieve (GNFS).
FactorWorld
Dedicated to algorithms and computational results on integer factorization. Includes links to papers, downloadable software, and online resources.
Factoring Papers
Links to papers on the theory and practice of factoring.
Sam Wagstaff
Article about SNFS factorisation of 3^349-1.
Robinson Primes
An analysis of problems relating to the numbers k.2^n+-1, primes, and factor patterns, including the Sierpinski problem.
I Love Binary, Primes, and Factors
Divisibility, primes and binary numbers.
RSA Laboratories Factoring Challenge
Numbers representative of those used in the RSA cryptosystem are offered for factor attempts with prizes. A Partition List challenge is also provided in order to encourage work on factoring in general.
More Factoring Sites
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