423*2^609975-1 is prime

309*2^954323-1 is prime :smile:

[FONT=Verdana]447*2^610250-1 is prime!

About time.
This is my first reportable prime for NPLB since last May.:shock:
[/FONT]

[quote=Flatlander;156776][FONT=Verdana]447*2^610250-1 is prime![/FONT]

[FONT=Verdana]About time.[/FONT]
[FONT=Verdana]This is my first reportable prime for NPLB since last May.:shock:[/FONT]
[/quote]


Nice one. Sorry you had to endure such a dry stretch.

[quote=gd_barnes;156782]Nice one. Sorry you had to endure such a dry stretch.[/quote]
Thanks. :smile:
I don't think you should have to apologise for the distribution of primes. lol
I just needed to moan a bit.

I just saw the auto-notify email go out to Henry because he just found one. :smile:

[quote=IronBits;156812]I just saw the auto-notify email go out to Henry because he just found one. :smile:[/quote]
brilliant

[FONT=Verdana]user=henryzz[/FONT]
[FONT=Verdana][2009-01-04 10:41:27][/FONT]
[FONT=Verdana]571*2^610371-1 is prime! Time : 2413.0 sec.[/FONT]

two primes in two days although the first was confirmed

[FONT=Verdana]user=IronBits[/FONT]
[FONT=Verdana][2009-01-05 14:53:19][/FONT]
[FONT=Verdana]665*2^613004-1 is prime! Time : 483.0 sec.[/FONT]

This one has a nice "ring" to it:

619*2^613139-1 is prime


It has three 1's, two 3's, two 6's, and two 9's excluding the base and the "-1" portion. :smile:

669*2^614303-1 is prime

[FONT=Verdana]user=IronBits[/FONT]
[FONT=Verdana][2009-01-08 23:03:39][/FONT]
[FONT=Verdana]693*2^614963-1 is prime! Time : 483.0 sec.[/FONT]