Forum: Software
2021-03-04, 13:39
|
|
Replies: 6
Views: 294
|
|
Forum: Aliquot Sequences
2021-03-02, 14:16
|
|
Replies: 948
Views: 69,106
To the new appearance of the page:
Almost all...
To the new appearance of the page:
Almost all points cleared but not (yet)
- scripts for button function codes simplify
- 'table' with links/buttons as css
Those changes can be done later but...
|
|
Forum: And now for something completely different
2021-03-02, 08:52
|
|
Replies: 243
Views: 36,799
Base 938
Another one down:
Base 938 tested to n=22k
Found primes so far:
-1: 21852
+1: 54, 56, 654, 749, 3916, 11463
No further reservation.
(938^21852-1)^2-2 has 129898 digits
|
|
Forum: Aliquot Sequences
2021-03-01, 17:34
|
|
Replies: 948
Views: 69,106
|
|
Forum: Riesel Prime Search
2021-03-01, 10:11
|
|
Replies: 402
Views: 60,447
|
|
Forum: Conjectures 'R Us
2021-02-15, 21:16
|
|
Replies: 906
Views: 94,612
|
|
Forum: Conjectures 'R Us
2021-02-15, 13:17
|
|
Replies: 906
Views: 94,612
The Wiki contains a page for the Riesel problem...
The Wiki contains a page for the Riesel problem ('https://www.rieselprime.de/ziki/Riesel_problem') and also for the Prime Grid project ('https://www.rieselprime.de/ziki/PrimeGrid_Riesel_Problem').
...
|
|
Forum: Riesel Prime Search
2021-02-14, 17:06
|
|
Replies: 1,021
Views: 124,263
|
|
Forum: Riesel Prime Search
2021-02-14, 09:44
|
|
Replies: 1,021
Views: 124,263
I've updated k=31, 207, 221, 255, 285 in the...
I've updated k=31, 207, 221, 255, 285 in the Wiki.
For k=255 included all data from that own thread (link given).
A lot of k-values <300 still reserved with last information years ago.
Perhaps a...
|
|
Forum: Proth Prime Search
2021-02-12, 10:40
|
|
Replies: 8
Views: 529
|
|
Forum: Riesel Prime Search
2021-02-02, 08:23
|
|
Replies: 453
Views: 51,443
To give more hints:
- the link Happy given is...
To give more hints:
- the link Happy given is the thread, so you have to go to the last post in it from 2021-01-19 (although the suspended sieves didn't changed since then in the first post)
- next...
|
|
Forum: And now for something completely different
2021-02-01, 09:43
|
|
Replies: 243
Views: 36,799
base 738
(738^15864-1)^2-2 is prime, 90998 digits
pfgw64 -tp -q"(738^15864-1)^2-2"
PFGW Version 4.0.0.64BIT.20190528.Win_Dev [GWNUM 29.8]
Primality testing (738^15864-1)^2-2 [N+1,...
|
|
Forum: And now for something completely different
2021-01-14, 08:18
|
|
Replies: 243
Views: 36,799
Found (968^79512-1)^2-2...
Found (968^79512-1)^2-2 ('https://primes.utm.edu/primes/page.php?id=131572'), 474826 digits
Base 968 tested until n=80k, releasing.
|
|
Forum: Viliam Furik
2021-01-09, 04:16
|
|
Replies: 5
Views: 311
|
|
Forum: Prime Wiki
2021-01-01, 22:48
|
|
Replies: 199
Views: 38,874
|
|
Forum: Prime Wiki
2021-01-01, 01:51
|
|
Replies: 199
Views: 38,874
|
|
Forum: Prime Wiki
2020-12-31, 20:37
|
|
Replies: 199
Views: 38,874
|
|
Forum: sweety439
2020-12-29, 14:44
|
|
Replies: 1,215
Views: 60,892
So you got your own definition of GCD?
In...
So you got your own definition of GCD?
In the first post reads (for Riesel side): (k*b^n-1)/gcd(k-1, b-1)
b=2021, k=1, n=67 (from table above)
GCD for k=1 in the above formula is undefined...
|
|
Forum: Riesel Prime Search
2020-12-16, 12:21
|
|
Replies: 88
Views: 22,322
I've included k=13236795...
I've included k=13236795 ('https://www.rieselprime.de/ziki/Riesel_prime_13236795') into the Wiki with the history data from this thread and reserved for you.
Not listed the sieve depth, but could do...
|
|
Forum: Conjectures 'R Us
2020-12-14, 08:22
|
|
Replies: 112
Views: 29,315
|
|
Forum: Riesel Prime Search
2020-12-12, 10:01
|
|
Replies: 402
Views: 60,447
|
|
Forum: Conjectures 'R Us
2020-12-04, 11:42
|
|
Replies: 112
Views: 29,315
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...
|
|
Forum: Abstract Algebra & Algebraic Number Theory
2020-12-02, 15:04
|
|
Replies: 8
Views: 2,792
|
|
Forum: Riesel Prime Search
2020-12-01, 23:49
|
|
Replies: 239
Views: 38,476
|
|
Forum: Prime Wiki
2020-11-30, 20:44
|
|
Replies: 38
Views: 2,975
|
