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Search: Posts Made By: kar_bon
Forum: storm5510 2022-07-03, 15:41
Replies: 5
Views: 107
Posted By kar_bon
You should look here...

You should look here ('https://www.mersenneforum.org/showthread.php?t=21240') in this forum for the minus-kind of Leyland numbers and also this page ('http://primfakt.atw.hu/').

All your found...
Forum: XYYXF Project 2022-07-01, 20:00
Replies: 568
Views: 125,751
Posted By kar_bon
There's already a page...

There's already a page ('https://www.rieselprime.de/ziki/Leyland_number') with some old ranges, a graph and just only 1814 numbers with many data and links to FactorDB.
Forum: MattcAnderson 2022-06-23, 21:03
Replies: 5
Views: 120
Posted By kar_bon
5 hours of energy which could be saved by...

5 hours of energy which could be saved by searching a well known database of such formats of number, see Studio Kamada ('https://stdkmd.net/nrr/repunit/10001.htm') for factors of 10^n+1 for n=1 to...
Forum: Software 2022-06-23, 07:32
Replies: 5
Views: 213
Posted By kar_bon
ehhhm... [...] Read 17421 terms [...] ...

ehhhm...

[...] Read 17421 terms [...]
[...] Deleted 17421 terms [...]

The source only contains one sequence for k=27 and the prime _is_ for k=27, so all is correct.
Forum: Sierpinski/Riesel Base 5 2022-06-16, 13:02
Replies: 26
Views: 41,404
Posted By kar_bon
One down for the Riesel-base 5 conjecture: ...

One down for the Riesel-base 5 conjecture:

64598 * 5^3769854-1 ('https://primes.utm.edu/primes/page.php?id=134054') is prime, 2,635,020 digits, found on 2022-06-14 by PrimeGrid.

Curious: the 5...
Forum: Aliquot Sequences 2022-06-15, 13:05
Replies: 432
Views: 20,140
Posted By kar_bon
1058^50: 140/136 terminated So the last open...

1058^50: 140/136 terminated

So the last open seq of this base is done now.
Forum: Homework Help 2022-06-10, 06:05
Replies: 24
Views: 1,220
Posted By kar_bon
Easiest way if you got one/both prime factors of...

Easiest way if you got one/both prime factors of the C130 for sure in the list:
- goto FactorDB ('http://factordb.com/index.php')
- put the 130 digit number in the field and click "factorize"
-...
Forum: Programming 2022-06-01, 23:17
Replies: 4
Views: 200
Posted By kar_bon
Try this: - your factors file is "test.txt" -...

Try this:
- your factors file is "test.txt"
- create awk file "listsort.awk" with code

{
gsub(/*2\^/," ",$3)
gsub(/+1/,"",$3)
gsub(/-1/,"",$3)
printf "%20s | %9s...
Forum: No Prime Left Behind 2022-06-01, 07:33
Replies: 9
Views: 445
Posted By kar_bon
The perfect number of a Mersenne prime 2p-1...

The perfect number of a Mersenne prime 2p-1 should read as 2p-1*(2p-1) instead.
Forum: No Prime Left Behind 2022-05-30, 22:38
Replies: 9
Views: 445
Posted By kar_bon
Using pfgw with pfgw64 -od...

Using pfgw with

pfgw64 -od -q"993*2^1717566-1" >prime.txt

puts out the number in decimal expansion in a file of 517,097 bytes:
including the expression in front and some spaces at the end....
Forum: And now for something completely different 2022-05-19, 06:41
Replies: 335
Views: 64,626
Posted By kar_bon
Cleaning holes in CK146: I've done CK146 for...

Cleaning holes in CK146:
I've done CK146 for 10000<n<30000, no primes found
Forum: And now for something completely different 2022-05-12, 08:59
Replies: 335
Views: 64,626
Posted By kar_bon
To clean up the irritations in the other thread: ...

To clean up the irritations in the other thread:
I've done CK46 for 30000<n<50000, no primes found
Forum: Riesel Prime Search 2022-04-24, 23:05
Replies: 477
Views: 72,592
Posted By kar_bon
What another mess! Stopping one k-value and...

What another mess!
Stopping one k-value and beginning another, again not from n=1 (although the primes for k=16545165 for n<10k are already known) and also missing your posted prime...
Forum: Riesel Prime Search 2022-04-22, 22:35
Replies: 11
Views: 1,340
Posted By kar_bon
The small range for n=1 to 10000 would take you...

The small range for n=1 to 10000 would take you no time when sieving with the whole reserved range, so do them, too.

You can input those small primes into FactorDB but nobody is interested in...
Forum: Riesel Prime Search 2022-04-22, 00:12
Replies: 456
Views: 97,804
Posted By kar_bon
So you will left those untested n-ranges?

So you will left those untested n-ranges?
Forum: Riesel Prime Search 2022-04-22, 00:10
Replies: 11
Views: 1,340
Posted By kar_bon
Please follow those suggestions given before: -...

Please follow those suggestions given before:
- post your reservation, given the k-value and the range you want to search
- post all primes found when done

Do not post so much small efforts...
Forum: Aliquot Sequences 2022-04-21, 09:34
Replies: 432
Views: 20,140
Posted By kar_bon
51^85 done

51^85 done
Forum: Aliquot Sequences 2022-04-14, 13:28
Replies: 1,734
Views: 199,914
Posted By kar_bon
75^89 terminates in a P165

75^89 terminates in a P165
Forum: Aliquot Sequences 2022-04-07, 10:04
Replies: 432
Views: 20,140
Posted By kar_bon
93^65 terminates in P21 52^94 terminates in P17...

93^65 terminates in P21
52^94 terminates in P17
439^55 terminates in P7
Forum: Prime Wiki 2022-04-04, 12:06
Replies: 203
Sticky: Prime-Wiki
Views: 81,508
Posted By kar_bon
I think this is not the right place to store such...

I think this is not the right place to store such information.

Questions:
Who should put those intormation in? ryanp or Batalov?
Those information are even more unverifiable than for say Riesel...
Forum: Aliquot Sequences 2022-04-04, 11:31
Replies: 432
Views: 20,140
Posted By kar_bon
Read the docfile.txt in the yafu.zip and the...

Read the docfile.txt in the yafu.zip and the parameter "ggnfs_dir".
Forum: Prime Wiki 2022-04-01, 11:35
Replies: 203
Sticky: Prime-Wiki
Views: 81,508
Posted By kar_bon
I don't know exactly, what do you mean here? Can...

I don't know exactly, what do you mean here? Can you give an example, please.
Forum: Riesel Prime Search 2022-04-01, 11:30
Replies: 456
Views: 97,804
Posted By kar_bon
Please give more data like the n-range reserved: ...

Please give more data like the n-range reserved:
Do you search from n=1 to n=360k?

There's no need to post an intermediate result:
- post your reservation with k-value and n-range given
- post...
Forum: Aliquot Sequences 2022-03-31, 14:57
Replies: 432
Views: 20,140
Posted By kar_bon
78^62 and 78^64 terminated.

78^62 and 78^64 terminated.
Forum: Prime Wiki 2022-03-30, 18:23
Replies: 203
Sticky: Prime-Wiki
Views: 81,508
Posted By kar_bon
I've updated the extension ExternalData to the...

I've updated the extension ExternalData to the newest version, but this did not eliminated the error.
I've inserted into the mime.types file of the MediaWiki source the line

application/csv csv
...
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