Peter, congrats on a nice prime! Our second with more than 3M digits.
That was a good move, to test k=9 past n=3M :smile:

289*2^1587151-1 (477783 digits)

1065*2^1134545-1 (341536 digits)
1065*2^1135016-1 (341677 digits)
1089*2^1135049-1 (341687 digits)
1231*2^1135229-1 (341742 digits)

[QUOTE=pb386;280094]9*2^3259381-1 (981173 digits)[/QUOTE]

I read the low-weight update tonight, and think "man, I should just focus on one k with a bunch of cores- it would be so cool to find a mega-digit prime!"

Bam! Next thread I open and you've found a near-megadigit. This just has to be more fun than the trickle of small primes.
Nice find, sir.

7th Drive:

2925*2^1074630-1 (323500 digits)

Another good weekend!

1095*2^2992587-1 (900862 digits)

[QUOTE=pb386;281012]Another good weekend!

1095*2^2992587-1 (900862 digits)[/QUOTE]

Wow! Did you skip to some bit-level to find big primes in this k-range?

[QUOTE=VBCurtis;281023]Wow! Did you skip to some bit-level to find big primes in this k-range?[/QUOTE]

I was looking for the largest prime in the range 1000<k<1400 and n<3M. This is it!

11th Drive:

2037*2^814197-1 (245102 digits)

11th drive:
2193*2^810330-1 (243937 digits)
2097*2^811170-1 (244190 digits)

My wishes to be like Peter are answered:
13*2^2606075-1 is prime! 784508 digits.

This is the first prime for k=13 since 233207, the longest dry spell of any k<300. I have searched since n= 1M on this k.
-Curtis