Information as of 2020-05-19: Data for Riesel 600<k<800 online.

**Done**history entries/primes for**Riesel primes 300<k<800**(Sources see here)**Done**history entries/primes for**Riesel primes 4000<k<4200**(Sources see here)**Done**history entries for**Riesel primes k<300**(Sources see here)**Please check your reservations here****.**

# Luigi Morelli

**Luigi Morelli** is an IT professional from Italy. Luigi (*ET_* on MersenneForum) is the founder of Team Italia on PrimeNet. An active member of the GIMPS community since 1997, he is the co-maintainer of Operation Billion Digits and one of the two main overseers. Supporting factorization of large (or small) Mersenne numbers, he wrote the Factor5 program. As of February 2011, he wrote some factoring code in PHP and has a website that is testing a list of exponents.

On September 2012 Luigi created a new website dealing with Double Mersenne numbers.