I just found the prime 19*2^916763-1 this morning :bounce:

You can check its status here:

[url]http://primes.utm.edu/primes/page.php?id=79395[/url]

:showoff:

Huge congrats!

Big congrats too!

I wish we could find a similar one for k=65...

Congrats!
I'm still in RPS' TOP-10 :whistle:

This morning I found my frist top5000 prime :smile:
[URL="http://primes.utm.edu/primes/page.php?id=79396"]49*2^460989-1[/URL] is prime! (138774 digits)

Special thanks to kosmaj for the support.

Congratulations! A nice big one to boot :geek:

886298985*2^359726-1 (108298 digits)

197 569222 is prime.
-Curtis

A prime with a nice looking exponent :smile:

173*2^632000-1 (190254 digits)

From pick your own K

1693514745*2^293162-1 (88260 digits)

and another
1693514745*2^294444-1 (88646 digits)