1491*2^351886-1 is prime.

95*2^790508-1 (237969 digits)

221 749166 is prime. 225124 digits.

-Curtis

5955*2^601219-1 (180989 digits)

1045*2^569617-1 (171475 digits)

:party::groupwave::bounce wave::banana:

19920911*2^425326-1 is prime

my second top5000 prime

1483*2^355039-1 is prime.
(I am no longer testing k=1431 btw.)

5855*2^611596-1 (184113 digits)

1075*2^592515-1 (178368 digits)

1415*2^586778-1 (176641 digits)

5737*2^369057-1 is prime

currently at n=504k and testing higher