Doug, a member of the team Gridcoin found a megaprime for base R30.
The prime 4372*30^706773-1 has 1.043.994 digits and entered the TOP5000 in Chris Caldwell's The Largest Known Primes Database.

grcpool.com, a member of the team Gridcoin found a megaprime for base R30.
The prime 3719*30^956044-1 has 1.412.197 digits and entered the TOP5000 in Chris Caldwell's The Largest Known Primes Database.

In total 7k's are left for this base.

Source