I wasted 1 year trying to factor that number after RSA-576 was factored. Before that wasted 3 years on RSA-576. Thats $20,000 and $10,000 in lost prize money. Could have used that dough. :(
Oh well... will pick myself up again and on with the next Challenge Number: RSA-704. The prize money is $30,000. Could seriously use THAT dough.
The factoring research team of F. Bahr, M. Boehm, J. Franke, T. Kleinjung continued its productivity with a successful factorization of the challenge number RSA-640, reported on November 2, 2005. The factors [verified by RSA Laboratories] are:
163473364580925384844313388386509085984178367003/
3092312181110852389333100104508151212118167511579
and
1900871281664822113126851573935413975471896789968/
515493666638539088027103802104498957191261465571
The effort took approximately 30 2.2GHz-Opteron-CPU years according to the submitters, over five months of calendar time. (This is about half the effort for RSA-200, the 663-bit number that the team factored in 2004.)
No comments:
Post a Comment