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Old 2019-06-29, 17:54   #221
lalera
 
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hi,
from where can i download cksieve ?
The requested URL /rogue/cksieve_1.1.4.7z was not found on this server
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Old 2019-06-29, 19:00   #222
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Quote:
Originally Posted by lalera View Post
hi,
from where can i download cksieve ?
The requested URL /rogue/cksieve_1.1.4.7z was not found on this server
cksieve is part of the mtsieve framework, which can be downloaded here: http://www.mersenneforum.org/rogue/mtsieve_1.9.2.7z.
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Old 2019-07-03, 12:50   #223
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Just filling in data for CK in the Wiki and found a missed prime:

(260^4128-1)^2-2

This was given in the output file but overlooked in 2018.
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Old 2019-07-14, 20:47   #224
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There seems a new Kynea: (2^852770+1)^2-2 found by Ryan Propper.
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Old 2019-07-15, 12:50   #225
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(22^42356+1)^2-2
(22^52147+1)^2-2
(22^82020+1)^2-2
(22^92539-1)^2-2

Base 22 completed to n=100000 and released.
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Old 2019-07-17, 19:01   #226
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Base 40320 is complete to n = 10k. Ten primes found:


Code:
 (40320^1+1)^2-2
 (40320^2-1)^2-2
 (40320^3-1)^2-2
 (40320^6-1)^2-2
 (40320^22+1)^2-2
 (40320^28+1)^2-2
 (40320^241+1)^2-2
 (40320^260+1)^2-2
 (40320^6582-1)^2-2
 (40320^9492-1)^2-2
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Old 2019-08-06, 21:22   #227
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Both are prime. The base is completed to n=100000 and released.

(24^55716-1)^2-2
(24^46309-1)^2-2
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Old 2019-08-08, 15:02   #228
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Base 26 completed to n=100000. No new primes. The base is released.
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Old 2019-10-08, 12:34   #229
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Base 394:

Found this today:
(394^49500-1)^2-2 is prime, 256955 digits

Used pfgw64 4.0.0
pfgw64 -tc -q"(394^49500-1)^2-2"
PFGW Version 4.0.0.64BIT.20190528.Win_Dev [GWNUM 29.8]

Primality testing (394^49500-1)^2-2 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 11, base 2+sqrt(11)
Running N+1 test using discriminant 11, base 3+sqrt(11)
(394^49500-1)^2-2 is prime! (9432.4430s+0.0303s)

This was the 2nd lowest base without any Carol-Prime. I will continue to n=50k.
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Old 2019-10-09, 04:53   #230
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Quote:
Originally Posted by kar_bon View Post
Base 394:

Found this today:
(394^49500-1)^2-2 is prime, 256955 digits

Used pfgw64 4.0.0
pfgw64 -tc -q"(394^49500-1)^2-2"
PFGW Version 4.0.0.64BIT.20190528.Win_Dev [GWNUM 29.8]

Primality testing (394^49500-1)^2-2 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 11, base 2+sqrt(11)
Running N+1 test using discriminant 11, base 3+sqrt(11)
(394^49500-1)^2-2 is prime! (9432.4430s+0.0303s)

This was the 2nd lowest base without any Carol-Prime. I will continue to n=50k.

Congrats! :-)

I don't see a reservation for this. Are you testing both the Carol and Kynea sides to n=50K ? Were there any Kynea primes for n>198 ?

Last fiddled with by gd_barnes on 2019-10-09 at 05:09
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Old 2020-01-07, 13:42   #231
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I'm always testing both sides, and there was no other prime than that.

Here's another one:
(1442^40757+1)^2-2 is prime, 257500 digits
tested up to n=41k with only n= 1, 5 & 66 for Kynea-side.
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