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Search: Posts Made By: kar_bon
Forum: Conjectures 'R Us 2021-10-07, 04:52
Replies: 115
Views: 38,497
Posted By kar_bon
Wiki for small Proth primes, least n-values...

Wiki for small Proth primes, least n-values ('https://www.rieselprime.de/ziki/Proth_prime_small_bases_least_n') updated with 8*908^243439+1.
Top5000 gives "Anonymous" as finder, different from here...
Forum: Conjectures 'R Us 2020-12-14, 08:22
Replies: 115
Views: 38,497
Posted By kar_bon
10*284^112809-1 (276758 decimal digits) is prime ...

10*284^112809-1 (276758 decimal digits) is prime
tested 100000<n<125000
Forum: Conjectures 'R Us 2020-12-04, 11:42
Replies: 115
Views: 38,497
Posted By kar_bon
I've changed/updated the page in the PrimeWiki...

I've changed/updated the page in the PrimeWiki for least Riesel values (https://www.rieselprime.de/ziki/Riesel_prime_small_bases_least_n).

Now the wanted values are stored in a data file (no adds...
Forum: Conjectures 'R Us 2020-08-03, 06:28
Replies: 115
Views: 38,497
Posted By kar_bon
4*438^n-1 is tested through n=300k, no prime.

4*438^n-1 is tested through n=300k, no prime.
Forum: Conjectures 'R Us 2020-05-25, 11:30
Replies: 115
Views: 38,497
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: Conjectures 'R Us 2020-05-05, 07:14
Replies: 115
Views: 38,497
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<n<200000
Forum: Conjectures 'R Us 2020-02-18, 07:17
Replies: 115
Views: 38,497
Posted By kar_bon
I've found: 8*283^164768-1 is prime Base...

I've found:
8*283^164768-1 is prime

Base 283 for k=8 tested to n=166k.
Forum: Conjectures 'R Us 2019-06-10, 07:38
Replies: 115
Views: 38,497
Posted By kar_bon
Checked 6*299^n-1 from n=25k (up to 65k) and...

Checked 6*299^n-1 from n=25k (up to 65k) and found:

6*299^64897-1 is prime!
Forum: Conjectures 'R Us 2019-06-08, 12:50
Replies: 115
Views: 38,497
Posted By kar_bon
I've included two pages in the Prime-Wiki for...

I've included two pages in the Prime-Wiki for these values:

- Riesel type ('https://www.rieselprime.de/ziki/Riesel_prime_small_bases_least_n')
- Proth type...
Forum: Conjectures 'R Us 2018-06-10, 07:17
Replies: 115
Views: 38,497
Posted By kar_bon
4*513^38031-1 is prime

4*513^38031-1 is prime
Forum: Conjectures 'R Us 2018-06-09, 09:23
Replies: 115
Views: 38,497
Posted By kar_bon
4*312^51565-1 is prime!

4*312^51565-1 is prime!
Forum: Conjectures 'R Us 2018-06-08, 07:16
Replies: 115
Views: 38,497
Posted By kar_bon
8*194^38360-1 is prime

8*194^38360-1 is prime
Forum: Conjectures 'R Us 2008-11-06, 12:40
Replies: 115
Views: 38,497
Posted By kar_bon
BTW the set are the first Fermat numbers F0 to...

BTW
the set are the first Fermat numbers F0 to F6 with their factors!!

PS
ok, Robert saw this!
Forum: Conjectures 'R Us 2008-11-06, 09:48
Replies: 115
Views: 38,497
Posted By kar_bon
don't know if your realized that the 5. Fermat...

don't know if your realized that the 5. Fermat number is F5 = 641 * 6700417 !

see here http://www.prothsearch.net/fermat.html
Showing results 1 to 14 of 14

 
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