[QUOTE=unconnected;230839]301*2^1514873-1 is prime[/QUOTE]

Nice one Dmitry! :smile:

571*2^912929-1 is prime

Riesel 399
 

Can't believe I missed this one

[URL]http://primes.utm.edu/primes/page.php?id=95128[/URL]

399*2^1293056-1 is prime

Gary, It was in the result file I emailed

[QUOTE=MyDogBuster;231401]Can't believe I missed this one

[URL]http://primes.utm.edu/primes/page.php?id=95128[/URL]

399*2^1293056-1 is prime

Gary, It was in the result file I emailed[/QUOTE]

Nice prime.

Interesting. I would not have discovered it until I verified results for n=1M-1.5M, which could easily be a year from now. I'm glad you saw it. Did you check all your files?

[QUOTE]I'm glad you saw it. Did you check all your files? [/QUOTE]

Yes, I checked them all.

649*2^760895-1 is prime

339*2^1161347-1 is prime

663*2^762428-1 is prime

633*2^763047-1 is prime

301*2^1801207-1 ‏(‎542220 digits)

[QUOTE=unconnected;232956]301*2^1801207-1 ‏(‎542220 digits)[/QUOTE]

Woah! :w00t:

First you find the new factorial prime and then this top-100 prime! It has been a prime week for you.. Congratulations!