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 Showing results 1 to 25 of 1000 Search took 0.61 seconds. Search: Posts Made By: kar_bon
 Forum: Twin Prime Search 2020-06-04, 09:41 Replies: 8 Views: 835 Posted By kar_bon FYI: I've included this k-value into the Wiki... FYI: I've included this k-value into the Wiki ('https://www.rieselprime.de/ziki/Riesel_prime_1068669447') and tested the whole range to n=250k.
 Forum: Miscellaneous Math 2020-05-30, 20:21 Replies: 3 Views: 88 Posted By kar_bon Why? Because... N = n2 - 4n - 5 =... Why? Because... N = n2 - 4n - 5 = (n-5)*(n+1), so your N/(n+1) = n-5. So your composite/prime generator f(n) = n-5.
 2020-05-30, 17:36 Replies: 251 Views: 21,235 Posted By kar_bon see here: All data are shown here... see here: All data are shown here ('https://www.rieselprime.de/ziki/Carol-Kynea_prime'), the current data table is here ('https://www.rieselprime.de/ziki/Carol-Kynea_table'). Not...
 2020-05-29, 12:12 Replies: 251 Views: 21,235 Posted By kar_bon Status CK290 at n=157k CK362 still at n=139k and cointinuing. Make it official, reserving bases with no primes on Carol side: CK688 at n=64k CK968 at n=69k CK1286 at n=59k CK1346 at n=57k
 Forum: Prime Wiki 2020-05-29, 10:34 Replies: 163 Sticky: Prime-Wiki Views: 11,378 Posted By kar_bon I've included templates for Proth prime base b... I've included templates for Proth prime base b ('https://www.rieselprime.de/ziki/Template:Gen_Proth_prime') (example here ('https://www.rieselprime.de/ziki/Gen_Proth_prime_5_6436'), smallest open...
 Forum: Wagstaff PRP Search 2020-05-27, 00:52 Replies: 370 Views: 29,320 Posted By kar_bon Or like this: p k 167747 4302619329240 ... Or like this: p k 167747 4302619329240 with factor = 2kp+1 of exponent p.
 Forum: Prime Wiki 2020-05-25, 21:25 Replies: 163 Sticky: Prime-Wiki Views: 11,378 Posted By kar_bon Again the sieve file: I've changed the... Again the sieve file: I've changed the handling, when creating a new k-value - new k-value for Riesel prime created (not saved yet, only "Show preview") with RSieve set (like "RSieve=y") - there...
 Forum: Prime Wiki 2020-05-25, 20:07 Replies: 163 Sticky: Prime-Wiki Views: 11,378 Posted By kar_bon RCount will become the value which will be taken... RCount will become the value which will be taken when a k-value is shown in any overview table. The automated counting is only done in the template of the k-value page to be sure taking the correct...
 Forum: Conjectures 'R Us 2020-05-25, 11:30 Replies: 107 Views: 11,496 Posted By kar_bon 4*303^198357-1... 4*303^198357-1 ('https://primes.utm.edu/primes/page.php?id=130922') is prime, 492,213 digits
 Forum: Prime Wiki 2020-05-24, 21:06 Replies: 163 Sticky: Prime-Wiki Views: 11,378 Posted By kar_bon I'm currently working on trying to speed up the... I'm currently working on trying to speed up the generating of the prime tables for Riesel primes. So I decided to extend a new parameter "RCount" to the Riesel prime template...
 Forum: No Prime Left Behind 2020-05-19, 15:53 Replies: 249 Sticky: News Views: 37,932 Posted By kar_bon The range 600
 2020-05-17, 10:11 Replies: 19 Views: 411 Posted By kar_bon srfile "-w" option sorts by n! When running... srfile "-w" option sorts by n! When running pfgw also use an expression like "{number_primes,\$a,1}" in the header, see the documentation there.
 Forum: Conjectures 'R Us 2020-05-17, 10:00 Replies: 4 Views: 169 Posted By kar_bon other conjectures For the problem 49 there's also an overview here ('https://www.rieselprime.de/Related/RieselTwinSG.htm'). I've updated up to k=500 but this should be done later in the Wiki, because the current...
 Forum: Prime Wiki 2020-05-15, 07:54 Replies: 163 Sticky: Prime-Wiki Views: 11,378 Posted By kar_bon The 'problem' with RPS Drive 9 &10 is they... The 'problem' with RPS Drive 9 &10 is they started searching for n>400k, so the given max n-value is not correct in the Wiki for all those k-values yet. In the bgeinning I decided not to include a...
 Forum: Prime Wiki 2020-05-14, 08:00 Replies: 163 Sticky: Prime-Wiki Views: 11,378 Posted By kar_bon No, it was Riesel k=25... No, it was Riesel k=25 ('https://www.rieselprime.de/ziki/Riesel_prime_25') (see here ('https://www.mersenneforum.org/showpost.php?p=537956&postcount=1932')). Borys found his first prime of this...
 Forum: Prime Wiki 2020-05-13, 20:28 Replies: 163 Sticky: Prime-Wiki Views: 11,378 Posted By kar_bon Riesel type primes are not listed separately in... Riesel type primes are not listed separately in the Top20, but Proth primes do. To get into the Top5000 with a Riesel prime, the n-value has currently be >~1.5 M (a higher k-value makes only small...
 Forum: Prime Wiki 2020-05-12, 23:48 Replies: 163 Sticky: Prime-Wiki Views: 11,378 Posted By kar_bon So where do you see a problem here? Sure... So where do you see a problem here? Sure every logged in user can edit any page, but as admin I have to mark as checked every edit, so any 'spam' will be spotted. Any edit can be watched in the...
 Forum: No Prime Left Behind 2020-05-07, 18:09 Replies: 249 Sticky: News Views: 37,932 Posted By kar_bon The range 400
 Forum: Conjectures 'R Us 2020-05-05, 07:14 Replies: 107 Views: 11,496 Posted By kar_bon 8*97^192335-1 is prime (382127 digits) 8*97^n-1... 8*97^192335-1 is prime (382127 digits) 8*97^n-1 tested for 100000
 Forum: Sierpinski/Riesel Base 5 2020-05-04, 21:45 Replies: 20 Views: 13,445 Posted By kar_bon Seems this was not reported here yet: ... Seems this was not reported here yet: 118568 * 5^3112069+1 ('https://primes.utm.edu/primes/page.php?id=130869') is prime, found on 2020-05-01
 Forum: No Prime Left Behind 2020-05-02, 19:12 Replies: 249 Sticky: News Views: 37,932 Posted By kar_bon I've inserted many history data for all 300
 Forum: Conjectures 'R Us 2020-04-27, 15:18 Replies: 3,668 Views: 212,608 Posted By kar_bon 9*990^23031-1 was found by Gary on 2019-06-07,... 9*990^23031-1 was found by Gary on 2019-06-07, see here ('https://www.mersenneforum.org/showpost.php?p=518762&postcount=93'). k*b^n-1 was tested there for k<=12, b<=1030 and n<=25k for a different...
 Forum: Riesel Prime Search 2020-04-25, 02:35 Replies: 543 Views: 37,906 Posted By kar_bon If needed I've made the 1000 files for every 1000... If needed I've made the 1000 files for every 1000 n-range from n=2M to 3M with 1008910 candidates all over in standard LLR format (header, sorted by n-value with all 21 k-values) from the latest...
 Forum: No Prime Left Behind 2020-04-24, 07:31 Replies: 688 Views: 42,255 Posted By kar_bon I've reanimated my k=1471 search at n=1.71M and... I've reanimated my k=1471 search at n=1.71M and found this for now: 1471*2^1772755-1 ('https://primes.utm.edu/primes/page.php?id=130853') is prime! (533656 decimal digits) Continuing.
 Forum: Prime Wiki 2020-04-24, 07:27 Replies: 3 Views: 376 Posted By kar_bon The link is under the distributed computing... The link is under the distributed computing projects (version of old MersenneWiki) as "http://www.myjavaserver.com/~primesearch/" but there is only the start page, no data like here...
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