The following files are available for downloading: database.zip A zipped version of a binary database containing exponents that have not been tested. You should not need this file. decomp.zip A program used to decompress the factors and nofactors files. factors.zip A list of the smallest known factors of Mersenne numbers. fprime.tgz FreeBSD version 19.1 dynamicly linked. fprimes.tgz FreeBSD version 19.1 staticly linked. hrf3.zip A list of exponents with that have had one LL test. hrf4.txt A list of exponents that have not been tested. hrf5.txt A list of user IDs and associated user names. lowm.txt Known factors of small Mersenne numbers, used in ECM factoring. lowp.txt Known factors of small 2^N+1 numbers, used in ECM factoring. lucas_v.zip A list of exponents that have been LL tested and double-checked mprime18.tar.gz Linux version 18.1 dynamicly linked. mprime19.tar.gz Linux version 19 dynamicly linked. mprime20.tar.gz Linux version 20 dynamicly linked. mprime21.tar.gz Linux version 21 dynamicly linked. mprime-18.1-freebsd3.0.tar.gz FreeBSD version 18. mprime-18.1-unix.tar.gz ???? nofactor.zip A list of how much trial factoring has been done on exponents. p95v18.zip Windows 95/98/NT version 18 p95v19.zip Windows 95/98/NT version 19 p95v20.zip Windows 95/98/NT version 20 p95v21.zip Windows 95/98/NT version 21 perfect4.txt Perfect number associated with 38th Mersenne prime prime.zip Windows 3.1 version 18 prime4.txt The 38th Mersenne prime primeos2.zip ???? programs.txt A list of programs used in testing Mersenne numbers source20.zip Source code for version 20 source21.zip Source code for version 21 sprime18.tar.gz Linux version 18 staticly linked. sprime19.tar.gz Linux version 19 staticly linked. sprime20.tar.gz Linux version 20 staticly linked. sprime21.tar.gz Linux version 21 staticly linked. winnt18.zip Windows NT service version 18 winnt19.zip Windows NT service version 19 winnt20.zip Windows NT service version 20 winnt21.zip Windows NT service version 21