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-   No Prime Left Behind (https://www.mersenneforum.org/forumdisplay.php?f=82)
-   -   Report top-5000 primes for all k<=1001 (https://www.mersenneforum.org/showthread.php?t=9891)

henryzz 2011-01-23 18:11

[QUOTE=gd_barnes;247605]Keep in mind that you need to create a brand new proof code and request that Prof. Caldwell transfer the prime to it. He will not want to add software or projects to an already existing proof code.[/QUOTE]
That's what I did. The code was deleted automatically and reassigned to Dennis Schreiber. That prime is now sorted. I suppose I had better sort out the other problems. I hate wasting his time this much. I will be more careful in future.

vaughan 2011-02-03 22:33

Its been a few weeks now but finally I found one.

905*2^772528-1 is Prime!
Added to database.

henryzz 2011-02-11 19:07

815*2^790042-1 is prime
I have found more primes this year already than last year with much less testing.

kar_bon 2011-02-12 00:39

983*2^779022-1 is prime

857*2^779812-1 is prime

3 days, 3 primes:
829*2^780551-1 is prime

next day, next prime:
935*2^781488-1 is prime

PCZ 2011-02-15 07:36

945*2^782674-1

gd_barnes 2011-02-15 08:19

Amazing. After an n=14K range with only 1 prime from n=765K-779K, we've had 6 primes in an n=4K range from 779K-783K; 5 already reported and 1 yet to report by Vaughan. :smile:

vaughan 2011-02-15 12:32

891*2^781918-1 is prime (sorry for the delay, got busy with work related phenomena)

kar_bon 2011-02-15 19:00

829*2^782489-1 is prime

gd_barnes 2011-02-16 06:02

Make that 7 primes in an n=4K range; 5 by Karsten! :smile:

kar_bon 2011-02-16 09:08

[QUOTE=gd_barnes;252646]Make that 7 primes in an n=4K range; 5 by Karsten! :smile:[/QUOTE]

The best run I've ever had so far:

5 primes at n~780k in a 3.5k n-range!

Looking [url=http://www.noprimeleftbehind.net/stats/index.php?content=prime_list]here[/url] those 5 primes were found on 5 consecutive days: Feb. 11th to 15th.

Good average per day! Anyone to calculate the odds for such find?

vaughan 2011-02-18 08:38

829*2^785131-1 is prime


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