n satifies the constraint an < 10255.
All the tables (as at 31 December 2000) can be obtained in one
compressed text file from
../rpb200t.txt.gz
The file comps.gz contains 955 composite factors of numbers of the above form. If you factor any of these, please let me know. The composites are sorted by increasing size but I suggest that you do not start attempts to factor them from the beginning - if everyone does that too much effort will be put into the numbers near the beginning of the list. Better would be to choose a random starting point in the list.
The file ecmnet.txt contains a list of factors found by ECM (mainly by ECMNET) for bases 13..99 since 4 November 2003.
The file factors.gz contains 276,367 factors f of numbers an +- 1, where a < 10000, n < 10000, and f > 109. For a < 12 these are mainly from the Cunningham tables (for n up to 1200), with contributions from Arjen Bot, Will Edgington, Alexander Kruppa and Paul Leyland (for larger n); for 13 < a < 99 they are mainly from the Brent-Montgomery-te Riele extension of the Cunningham tables, with contributions by ECMNET and various individuals (see below); for 100 < a < 1000 they are mainly from the tables produced by Hisanori Mishima and Mitsuo Morimoto with additions from Rob Hooft, Pete Moore and others. For prime bases a < 1000 I computed many of the factors for an unpublished extension of the Brent-Montgomery-te Riele tables.
The file holes.txt contains a list of "first holes" in the tables of factors of numbers an +- 1, for a < 100.
The files rpb117*.* and rpb134*.* may be useful.
(
../rpb200t.txt.gz updated 18 January 2001)
(
comps.gz updated 8 April 2008)
(
ecmnet.txt updated 22 February 2007)
(
factors.gz updated 7 July 2008)
(
holes.txt updated 7 July 2008)