58695*2^445378-1 (134077 digits)

And from the 5th drive:

237*2^832053-1 (250476 digits)

[quote=amphoria;119742]58695*2^445378-1 (134077 digits)

And from the 5th drive:

237*2^832053-1 (250476 digits)[/quote]
The 5th Drive strikes again! Woo hoo! :banana::wacky::joe o::paul:

139*2^451367-1 is prime (135878 digits)

Testing on k=139 is now up to n=453K.

1000065*2^412918-1 is prime (124307 digits)

This is getting ridiculous (see msg #870)!

58695*2^445992-1 (134262 digits)

And from the 5th drive:

261*2^827599-1 (249135 digits)

[quote=amphoria;119916]This is getting ridiculous (see msg #870)!

58695*2^445992-1 (134262 digits)

And from the 5th drive:

261*2^827599-1 (249135 digits)[/quote]
B2 over at Riesel Sieve has a theory that "primes come in bunches"--and it seems to be somewhat correct, at least for the 5th Drive! :smile: Also for k=58695, it seems.

3213*2^421874-1 (127001 digits)

125*2^918494-1 (276497 digits)

[QUOTE=em99010pepe;119953]125*2^918494-1 (276497 digits)[/QUOTE]Congratulations on your new personal record :tu:

[quote=Cruelty;119954]Congratulations on your new personal record :tu:[/quote]

I would like to thank my Mom, my Dad, my two sisters and finally my Quad-Core!

And yet another from the 5th drive:

291*2^832410-1 (250583 digits)

If you include the prime found by Benson for k=51, this file contains 3 primes so far.