__Links and
tables__

(1) **The Ecmnet of
Paul Zimmermann**

There are introductions of gmp-ecm and
projects which aim to factor various types of numbers .

**The source files of gmp-ecm
**

**Summary of
efforts**

You can find efforts that many people made for
the Cunninghmam numbers .

(2) **Factor tables of
professor Richard Brent of Federation Fellow MSI, ANU, Canberra, ACT 0200,
Australia**

Many tables , news , and links about
a^{n} + / - 1 , a <= 99

(3) **Repunit factors of Torbjorn Granlund of
Swox**

**The top of
Swox**

There are the GMP library source code and
informations of GMP .

(4) **WIFC (World
Integer Factorization Center) of Mishima**

There are
factorization tools , factorizations of various types of numbers , and their
statuses .

(5) **Factorizations
of near-repdigit numbers of Kamada**

There are also
status and informations of "near-repdigit numbers" .

(6) **Factorizations of Repunit Numbers of the
form (10^n-1)/9**

Ecm efforts beyond Cunningham range are shown .

(7) **World's 10 largest factors of
repunits ever found by gmp-ecm 4c , 5 and 6**

(8) **My tables** of searching
factors of repunit numbers by gmp-ecm