691*2^753141-1 is prime

423*2^833558-1 is prime

483*2^834386-1 is prime

753*2^754248-1 is prime

[URL="http://primes.utm.edu/primes/page.php?id=93321"]349*2^1278551-1[/URL] is prime!
I returned from a week long vacation to find a third megabit prime from my individual k's. The old gambler's fallacy that suggests primes were due for these k's may be false, but it sure seems like it's true this time. :wink:

609*2^754413-1 is prime

447*2^836966-1 is prime

531*2^836707-1 is prime.

563*2^837448-1 is prime

465*2^825730-1 is confirmed prime

437*2^850256-1 is prime
That's my first top 5000 prime in 9 months and my largest by far.