L.S., With the project of vobis in .de not available at this moment I made a ranking of the list based on factorized years for the numbers 1 through 2500. The last one has done 0.010 years of factorization. It is available at http://home.wxs.nl/~tha/Mersenne/RankByFactor.txt I plan to update this irregularly until Jay is up and running again. YotN, Henk Stokhorst
