Patience (and new hardware) pays off; I've just found my first megabit prime:

161*2^1553570-1 (467,674 digits)

Congrats!

But it's not on the list of largest primes yet (?)

[QUOTE=Kosmaj;252167]Congrats!

But it's not on the list of largest primes yet (?)[/QUOTE]
The prime has just been submitted to the top 5000 list, and it should come in at rank #143 when it's verified :smile:

9th drive:
21825*2^912659-1 (274743 digits)
28605*2^913690-1 (275053 digits)
13845*2^913699-1 (275055 digits)

1203*2^966383-1 (290914 digits)

Megabit drive
61*2^1416365-1 (426371 digits)

Megabit drive
65*2^1421088-1 (427792 digits)

4173*2^729386-1 (219571 digits)

8th drive:
5025*2^908815-1 (273585 digits)

9th drive:
23805*2^916969-1 (276040 digits)

8th drive:
7215*2^911807-1 (274486 digits)