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 2018-03-30, 23:03 #199 gd_barnes     May 2007 Kansas; USA 240068 Posts Base 58 is complete to n=30K. 2 new primes found for n=10K-30K: (58^23046+1)^2-2 (58^29505+1)^2-2
 2018-04-24, 07:26 #200 kar_bon     Mar 2006 Germany 23·3·7·17 Posts Status CK 290 at n=60k, no new primes CK 362 at n=53k: new prime (362^46308+1)^2-2 (236978 digits)
 2018-06-02, 20:09 #201 Dylan14     "Dylan" Mar 2017 13·41 Posts Base 18 is complete to n = 50k. One prime found for n = 40k-50k: Code:  (18^40485+1)^2-2
 2018-07-06, 23:53 #202 Dylan14     "Dylan" Mar 2017 13×41 Posts Base 472 is complete to n = 25k. Three primes found for n = 10k-25k, including the first Carol prime for this base: Code:  (472^14542+1)^2-2 (472^16077-1)^2-2 (472^17019+1)^2-2
 2018-09-03, 07:32 #203 kar_bon     Mar 2006 Germany 23×3×7×17 Posts status CK12 at n=74k: new prime (12^68835-1)^2-2 (148571) digits CK290 at n=100k, continuing CK362 at n=88k, continuing
 2018-09-12, 00:50 #204 Dylan14     "Dylan" Mar 2017 13×41 Posts Base 102 is searched to n = 30k. One prime found for n = 10k-30k: Code: (102^13808-1)^2-2
 2018-09-12, 07:36 #205 kar_bon     Mar 2006 Germany 23×3×7×17 Posts (12^78858+1)^2-2 is prime: 170205 digits
 2019-03-03, 03:52 #206 paulunderwood     Sep 2002 Database er0rr 66618 Posts Congrats to kar_bon for (290^124116-1)^2-2 (611,246 decimal digits long)
 2019-03-03, 09:01 #207 kar_bon     Mar 2006 Germany 285610 Posts Yes, I thought to wait until it's verified before posting here, took some time. Base 290 is the first without a prime on the Kynea (+1) side so that's why I'm searching here but found 'only' one on the Carol side. Altough it's now the biggest prime of such format. C.Caldwells database do not support the naming of "Carol/Kynea" in official so only the clean entry. Base 362 is the one without and prime on the Carol side so searching that base, too.
2019-03-07, 05:28   #208
gd_barnes

May 2007
Kansas; USA

2·47·109 Posts

Quote:
 Originally Posted by paulunderwood Congrats to kar_bon for (290^124116-1)^2-2 (611,246 decimal digits long)

Nice one Karsten! The largest that the project has found!

 2019-04-03, 13:49 #209 lalera     Jul 2003 22·151 Posts hi, here are the results for carol / kynea b=328, n=2000 to 10000 b=330, n=2000 to 10000 b=332, n=2000 to 10000 b=334, n=2000 to 10000 b=336, n=2000 to 10000 b=338, n=2000 to 10000 b=340, n=2000 to 10000 b=342, n=2000 to 10000 (328^2315+1)^2-2 (328^3116-1)^2-2 (332^4305+1)^2-2 (334^4485-1)^2-2 (336^7070+1)^2-2 (340^7581-1)^2-2

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