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Search: Posts Made By: MDaniello
Forum: FactorDB 2020-10-19, 08:38
Replies: 423
Views: 37,566
Posted By MDaniello
(2^86243-1)*702850+1...

(2^86243-1)*702850+1 (http://www.factordb.com/index.php?id=1100000001388804470) N-1 25968 digits
(2^86243-1)*1311784+1 (http://www.factordb.com/index.php?id=1100000000273952855) N+/-1 25968...
Forum: FactorDB 2020-09-28, 09:56
Replies: 423
Views: 37,566
Posted By MDaniello
2^18942-63...

2^18942-63 (http://factordb.com/index.php?id=1100000000294461298) N-1 5703 digits
2*I(23918)+1 (http://factordb.com/index.php?id=1100000001392299969) N+/-1 4999 digits...
Forum: FactorDB 2020-05-28, 22:36
Replies: 423
Views: 37,566
Posted By MDaniello
10*I(23856)-1...

10*I(23856)-1 (http://www.factordb.com/index.php?id=1100000001351638991) N+/-1 4987 digits
70^633-71 (http://factordb.com/index.php?id=1100000001499539614) N+1 1168 digits
91^593-92...
Forum: FactorDB 2020-04-16, 07:54
Replies: 423
Views: 37,566
Posted By MDaniello
(21351113^128+1)/2...

(21351113^128+1)/2 (http://factordb.com/index.php?id=1100000001459591120) N-1 938 digits
(2^132049-1)*185056+1 (http://www.factordb.com/index.php?id=1100000000271528297) N-1 39756 digits...
Forum: FactorDB 2020-03-24, 20:34
Replies: 423
Views: 37,566
Posted By MDaniello
(9667^1201-1)/9666...

(9667^1201-1)/9666 (http://factordb.com/index.php?id=1100000000493022786) N-1 4783 digits
(154^1495-1)^2-2 (http://factordb.com/index.php?id=1100000001086336158) N+1 6541 digits...
Forum: FactorDB 2020-03-19, 11:19
Replies: 423
Views: 37,566
Posted By MDaniello
Quarantine is boring

Now that the worker queue was emptied, the FDB processed the N+/-1 proofs too (i guess they have a low priority).
This is what i had in queue:

(1538^356+1)/(1538^4+1)...
Forum: FactorDB 2020-03-02, 17:36
Replies: 448
Views: 40,937
Posted By MDaniello
I too noticed that. After coming back up, there...

I too noticed that. After coming back up, there were 16 workers crunching certificates instead of the usual 4.
I guess fdb was taken down momentarily to start the other workers.
Forum: Factoring 2020-03-02, 08:37
Replies: 418
Views: 38,637
Posted By MDaniello
HP10(10700) terminates (P129, iteration 64) ...

HP10(10700) terminates (P129, iteration 64)



Yes, this is what i meant. Sorry for my terrible explanation :(
Forum: FactorDB 2020-02-11, 08:24
Replies: 448
Views: 40,937
Posted By MDaniello
I found that FDB recognized some numbers of this...

I found that FDB recognized some numbers of this form
(long expression)^2-1
as PRPs, albeit clearly composites.

While you can easily fix this by reporting a factor or asking to check a base, at...
Forum: Factoring 2020-02-10, 18:23
Replies: 418
Views: 38,637
Posted By MDaniello
Looking for new integers to factor, i found out...

Looking for new integers to factor, i found out that someone completed HP10(5874).
Forum: FactorDB 2020-02-02, 19:21
Replies: 423
Views: 37,566
Posted By MDaniello
Proved (4794^316+1)/(4794^4+1)...

Proved (4794^316+1)/(4794^4+1) (http://factordb.com/index.php?id=1100000001441093806) by N-1.

I'm gonna quit looking for candidates for N-/+1 for a while.
Forum: FactorDB 2020-01-20, 08:32
Replies: 1,616
Views: 122,189
Posted By MDaniello
Thanks for the suggestions! I'll look into YAFU...

Thanks for the suggestions! I'll look into YAFU and Colab.
Forum: FactorDB 2020-01-18, 19:17
Replies: 1,616
Views: 122,189
Posted By MDaniello
I wanted to work on those composites too, but my...

I wanted to work on those composites too, but my system is quite slow so i was thinking about looking for factors up to 15-25 digits, depending on the sizes, to get the low-hanging fruits.
I've...
Forum: FactorDB 2019-12-31, 13:40
Replies: 10
Views: 2,290
Posted By MDaniello
That massive number of tests in stack made me...

That massive number of tests in stack made me wonder if someone was "clearing" some digit interval in the Unknown status list. Given that is taking a really long time to test those numbers, they...
Forum: FactorDB 2019-12-29, 11:41
Replies: 423
Views: 37,566
Posted By MDaniello
570^101*202^285-1...

570^101*202^285-1 (http://factordb.com/index.php?id=1100000001369260465) N+1, 936 digits
914^37*74^457+1 (http://factordb.com/index.php?id=1100000001370908447) N-1, 964 digits
(10^4450+27)/37...
Forum: FactorDB 2019-12-02, 19:59
Replies: 39
Views: 5,701
Posted By MDaniello
It seems the site is available again, while it...

It seems the site is available again, while it keeps debugging the db in the background (it's actually showing the IDs it's working on in the status page).
The database is 817,667MB (81.77% used)
Forum: FactorDB 2019-12-01, 19:17
Replies: 39
Views: 5,701
Posted By MDaniello
I briefly got access back to factordb, but then i...

I briefly got access back to factordb, but then i got a "2002: SQLSTATE[HY000] [2002] Connection refused" error and now is back to "Full database check (will take some time)".

The database was...
Forum: FactorDB 2019-10-07, 08:16
Replies: 423
Views: 37,566
Posted By MDaniello
(9906^211-1)/9905...

(9906^211-1)/9905 (http://factordb.com/index.php?id=1100000001367529136) 840 digits N-1
(10^160-1)^9-2 (http://factordb.com/index.php?id=1100000001365658997) 1440 digits N+1...
Forum: FactorDB 2019-09-30, 09:45
Replies: 423
Views: 37,566
Posted By MDaniello
10^1152*962-1...

10^1152*962-1 (http://www.factordb.com/index.php?id=1100000001364792803) 1155 digits N+1
(2^19937-1)*47322-1 (http://www.factordb.com/index.php?id=1100000000819790440) 6007 digits...
Forum: FactorDB 2019-09-26, 19:30
Replies: 423
Views: 37,566
Posted By MDaniello
A few more numbers: 374^141*282^187-1...

A few more numbers:

374^141*282^187-1 (http://factordb.com/index.php?id=1100000001363341348) N+1 821 digits
ID 1100000001361917758 (http://factordb.com/index.php?id=1100000001361917758) ...
Forum: FactorDB 2019-09-26, 07:24
Replies: 448
Views: 40,937
Posted By MDaniello
I'm looking for easy N-1 proofs these days, and i...

I'm looking for easy N-1 proofs these days, and i noticed this too. Maybe is giving priority in checking Primo certificates, if N-1 has a lot factors? Usually i see dozens of certificates in queue....
Forum: FactorDB 2019-09-24, 10:56
Replies: 423
Views: 37,566
Posted By MDaniello
This...

This (http://factordb.com/index.php?id=1100000001362195388) 1513-digits number was available for a N-1 proof, thanks to a certficate uploaded for a 605 digit factor!

On a similar note, a proof for...
Forum: FactorDB 2019-09-23, 09:53
Replies: 423
Views: 37,566
Posted By MDaniello
This time a smaller one:...

This time a smaller one: (300^324*324^300+1)/(300^108*18^200+1) (http://factordb.com/index.php?id=1100000001362352240) (1038 digits, proved by N-1)
Forum: FactorDB 2019-09-22, 11:31
Replies: 423
Views: 37,566
Posted By MDaniello
Another easy one: (164^4967+1)^2-2...

Another easy one:
(164^4967+1)^2-2 (http://factordb.com/index.php?id=1100000000915664811), 22003 digits!
Forum: FactorDB 2019-09-18, 08:48
Replies: 423
Views: 37,566
Posted By MDaniello
Smile I found other numbers to prove: ID ...

I found other numbers to prove:


ID Number Proven by Digits
1100000000832798465 (12^15456-1)^2-2 N+1 33360
1100000001101920765 ...
Showing results 1 to 25 of 33

 
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