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-   -   POST LOTS AND LOTS OF PRIMES HERE (https://www.mersenneforum.org/showthread.php?t=13180)

amphoria 2011-12-06 22:54

[QUOTE=VBCurtis;281311]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[/QUOTE]

Congratulations on the prime and on persevering for so long.

pb386 2011-12-06 23:09

[QUOTE=VBCurtis;281311]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[/QUOTE]

Nice one Curtis! Obviously worth the wait.

Kosmaj 2011-12-07 03:34

Hi Curtis,

Congrats on that great prime! :smile:

The RPS score is now over 50.15 :cool:

VBCurtis 2011-12-07 07:18

Thanks, guys. An aftershock, or perhaps an encore:
201*2^1249030-1 (375998 digits)

Both primes were found today- happened to be the two machines I check daily. When it rains..

pb386 2011-12-07 09:37

11th drive:
2253*2^812755-1 (244667 digits)

kar_bon 2011-12-07 14:42

I'm missing some notes about k=271, 279 and 285 (and perhaps others).

See found primes [url=http://primes.utm.edu/primes/page.php?id=103471]here[/url], [url=http://primes.utm.edu/primes/page.php?id=103470]here[/url] and [url=http://primes.utm.edu/primes/page.php?id=103498]here[/url].

Kosmaj 2011-12-07 15:10

Beyond is working on these three, and other available Ks in the
200 < k < 300 range.
And he just found 3 primes! :smile:
I'll post the full list shortly.

sjtjung 2011-12-07 15:15

2055*2^761537-1 is prime (229249 digits)

pb386 2011-12-08 09:25

11th drive:
2163*2^813551-1 (244907 digits)

amphoria 2011-12-09 22:42

11th Drive:

2253*2^817730-1 (246165 digits)

pb386 2011-12-12 11:33

11th drive:
2201*2^824418-1 (248178 digits)
2127*2^825414-1 (248478 digits)


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