381*2^618929-1 is prime

915*2^652353-1 is a confirmed prime

After an extremely long dry spell on the 5th drive:

533*2^656000-1 is prime


The last prime was at n=~638K. I counted 7 primes for the 7th drive between the 5th drive's last prime at n=~638K and the 7th drive's current search limit, which is nearing 653K.


Gary

905*2^652908-1 is prime

459*2^657272-1 is prime

375*2^639621-1 is prime

573*2^657807-1 is prime (new) :grin:

801*2^655362-1 is prime

breaking the rule for the 6k team effort:

333*2^710678-1 is prime, the first non-315/321-prime!

Oh, yes!
Getting up there into the sweet spot.

That's 213,938 digits taking 3rd place overall in the Automated NPLB stats.
Well done!

319*2^671009-1 is prime