[QUOTE=unconnected;377054]I've tested this k to n=3M.[/QUOTE]

Thanks for the info (I did not find a reservation or status-update for the k with a quick search). I was planning on putting one core to crunch one low-weight, already sieved, low-n k, but perhaps I'll dedicate also that core on running ECM (stage 1) on F12.

[B]I unreserve the k=9913[/B] then and continue slowly just with 45045. (Maybe [url]http://www.rieselprime.de/[/url] could be updated on k=9913).

edit: on a second thought: [B]I could reserve k=3907[/B] (if it is not also tested to the 3M heights.. It is not complete obvious for me where I should check the reservations)

k=3907 is reserved by Free-DC Prime Search but it has been a dead project for the last year.

[url]http://primes.utm.edu/bios/page.php?id=1820[/url]

[QUOTE=unconnected;377054]I've tested this k to n=3M.[/QUOTE]

Did you mentioned this effort in this Forum? If so, please give me a link, so I can insert it on my page. Thanks.

[QUOTE=pinhodecarlos;377059]k=3907 is reserved by Free-DC Prime Search but it has been a dead project for the last year.[/quote]
It's not reserved on my pages because FDC is dead for a long time, only primes found by Burt were inserted.

r1401
 

r1401 800K-1.3M

Lennart

riesel 19920911 is now upto 1.4M. n=[COLOR=#000000][FONT=Times New Roman]1137978 was found to be prime
reserving the low weight:
13766
18358
19574
19826
I have them sieved to 1M.
[/FONT][/COLOR]

57821*2^n-1 tested to 1M. Finished testing.
10451*2^n-1 tested to 700k. Hope to reach 1M.
Will check what happened with my previous reservations.

[QUOTE=henryzz;378834]reserving the low weight:
13766
18358
19574
19826
I have them sieved to 1M.
[/QUOTE]
I have record of testing these to 500k.
Primes:
[CODE]13766*2^38-1
19574*2^12-1
19574*2^588-1
19574*2^912-1
19826*2^1186-1
19574*2^2892-1
18358*2^4119-1
19826*2^8386-1
18358*2^10407-1
18358*2^41679-1
19574*2^47208-1
[/CODE]
Unreserving

Batalov pointed out by pm that these ks are even. Not sure how this has been missed for this long.

Can they come from some 4^n or higher "crus"? As it seems most of the n's are also even, and most of the k's are 2 mod 4?

[QUOTE=LaurV;441600]Can they come from some 4^n or higher "crus"? As it seems most of the n's are also even, and most of the k's are 2 mod 4?[/QUOTE]

I am pretty certain none match up. The numbers in CRUS have been tested higher anyway.