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Search: Posts Made By: biwema
Forum: Operazione Doppi Mersennes 2014-05-15, 20:20
Replies: 490
Sticky: Reservations
Views: 34,644
Posted By biwema
Oh, seems i forgot to reserve some range. ...

Oh, seems i forgot to reserve some range.

complete, no factors:

no factor for MM31 in k range: 56P to 57P (88-bit factors) [mmff 0.27 mfaktc_barrett89_M31gs]
no factor for MM31 in k range: 57P...
Forum: Operazione Doppi Mersennes 2014-03-30, 13:14
Replies: 490
Sticky: Reservations
Views: 34,644
Posted By biwema
complete, no factors: no factor for MM107 in...

complete, no factors:

no factor for MM107 in k range: 3200T to 3400T (160-bit factors) [mmff 0.27 mfaktc_barrett160_M107gs]


reserving:
MM31, 56P to 57P
Forum: Operazione Doppi Mersennes 2014-03-12, 21:03
Replies: 490
Sticky: Reservations
Views: 34,644
Posted By biwema
complete, no factors: no factor for MM107 in...

complete, no factors:

no factor for MM107 in k range: 3000T to 3200T (160-bit factors) [mmff 0.27 mfaktc_barrett160_M107gs]


reserving:
MM107, 3.2P to 3.4P
Forum: Operazione Doppi Mersennes 2014-02-18, 23:46
Replies: 490
Sticky: Reservations
Views: 34,644
Posted By biwema
finally complete (with many stops - sorry): ...

finally complete (with many stops - sorry):

no factor for MM31 in k range: 55P to 56P (88-bit factors) [mmff 0.27 mfaktc_barrett89_M31gs]


reserving:
MM107, 3P to 3.2P
Forum: Software 2013-07-04, 13:57
Replies: 156
Views: 14,504
Posted By biwema
If I understand you correctly, you try to find x...

If I understand you correctly, you try to find x that k*x+4 or k*x+6 or both can be factored easily (N+1; N-1) that you don’t need PRIMO. In that case there are also some restrictions for x.
...
Forum: Operazione Doppi Mersennes 2013-05-31, 12:55
Replies: 490
Sticky: Reservations
Views: 34,644
Posted By biwema
MMFactor=31,55e15,56e15

MMFactor=31,55e15,56e15
Forum: Operazione Doppi Mersennes 2013-05-31, 12:54
Replies: 620
Sticky: Results
Views: 48,237
Posted By biwema
Sorry for the late result (The fan gets quite...

Sorry for the late result (The fan gets quite noisy, so I had to turn off the calculation from time to time. Maybe I rather try to underclock the GTX (for example 50-80% clock frequency) instead of...
Forum: Operazione Doppi Mersennes 2012-12-26, 13:09
Replies: 490
Sticky: Reservations
Views: 34,644
Posted By biwema
I would like to reserve MM31, 44P-45P

I would like to reserve MM31, 44P-45P
Forum: Operazione Doppi Mersennes 2012-12-21, 11:03
Replies: 620
Sticky: Results
Views: 48,237
Posted By biwema
took long time until complete... no factor...

took long time until complete...

no factor for MM31 in k range: 32P to 33P (87-bit factors) [mmff 0.26 mfaktc_barrett89_M31gs]
Forum: Aliquot Sequences 2012-07-12, 15:19
Replies: 272
Views: 15,390
Posted By biwema
Done 777762 index 1458, size 124 2^5 · 3 ·...

Done 777762

index 1458, size 124
2^5 · 3 · 5^2 · 31 · C119
Forum: Aliquot Sequences 2012-07-06, 12:04
Replies: 272
Views: 15,390
Posted By biwema
reserving 777762

reserving 777762
Forum: Aliquot Sequences 2012-06-30, 14:17
Replies: 272
Views: 15,390
Posted By biwema
Releasing 600822 (Done for this subproject) ...

Releasing 600822 (Done for this subproject)

Maximum size: 131
Minimum size: 32
Elements added: 1802

i4216, Size 121, 2^2 * 3^3 * 5^2 * 7 * C116
Forum: Software 2012-04-30, 20:50
Replies: 156
Views: 14,504
Posted By biwema
Our Approaches are just different. I did not use...

Our Approaches are just different. I did not use a constant, because i just use the quotient between lieve Limit and candidate. So even the base of the log has no influence anymore.

I see one main...
Forum: Software 2012-04-30, 12:21
Replies: 156
Views: 14,504
Posted By biwema
I am sorry that I did not answer that question...

I am sorry that I did not answer that question for such a long time.
Yesterday I took time to do that, but lost everything after I accidently hit the ‘page back’ key. Trying again…

After sieving...
Forum: Software 2012-04-27, 11:43
Replies: 156
Views: 14,504
Posted By biwema
How far did you sieve? How many primes / twins...

How far did you sieve? How many primes / twins did you get?
On average you might expect 3 3-tuple per 10 T range.

Im am sorry that i did not yet answer about my calculations. I just was busy. I...
Forum: Software 2012-04-20, 16:26
Replies: 156
Views: 14,504
Posted By biwema
1) Presieve: (I am not completely sure, if...

1) Presieve:

(I am not completely sure, if axn uses the presieve for the same purpose, as I do).
For me it is not necessary, but it is a way to improve the performance. When you sieve, you remove...
Forum: Software 2012-04-19, 11:47
Replies: 156
Views: 14,504
Posted By biwema
Hi Peter Congratulations for your new...

Hi Peter

Congratulations for your new discovery of the new quadruplet.
This time you were quite lucky again: At k*2^9999 (k odd) there is on average a 4-tuple every 375T.

I am also searching...
Forum: Aliquot Sequences 2012-04-13, 11:09
Replies: 272
Views: 15,390
Posted By biwema
Thank you for the info. I just had a look into...

Thank you for the info.
I just had a look into the first post of this thread and found 761 iterations in the db.

In this case I switch to 600822 instead
Forum: Aliquot Sequences 2012-04-12, 22:43
Replies: 272
Views: 15,390
Posted By biwema
Done 573600 i2566, Size 119, 2^3 * 3^3 * 5 * 7...

Done 573600
i2566, Size 119, 2^3 * 3^3 * 5 * 7 * 859 * 70913 * C107

I am not sure if all iterations are updated to the dataase. When checking in I hit the limit of 3000 IDs.

Reserving 99312...
Forum: Aliquot Sequences 2012-04-04, 23:25
Replies: 272
Views: 15,390
Posted By biwema
My reservation 573600 is still alive... I...

My reservation 573600 is still alive...

I reserved it quite long time ago; sometimes it lost the '3', then it got back in different powers... until my hard drive crashed.

Fortunately I could...
Forum: Aliquot Sequences 2011-11-29, 01:45
Replies: 1,167
Views: 19,985
Posted By biwema
Releasing 135858, index 1969, size 128 2^3 ·...

Releasing 135858, index 1969, size 128

2^3 · 3 · 11 · 17 · 11235199633598953 · C108
Forum: Aliquot Sequences 2011-11-29, 01:40
Replies: 272
Views: 15,390
Posted By biwema
After some intermezzo to clear my reservation...

After some intermezzo to clear my reservation 135858 and some search for prime quadruplets I would like to continue here and reserve a new number...

Reserving 573600
Forum: Aliquot Sequences 2011-10-09, 22:02
Replies: 1,167
Views: 19,985
Posted By biwema
Releasing 826848: Index 1117, Size 119 ...

Releasing

826848:
Index 1117, Size 119
2^3 · 5 · 67 · C116

888240:
Index 1880, Size 115
2^3 · 3 · C114
Forum: Aliquot Sequences 2011-09-20, 21:54
Replies: 307
Views: 22,678
Posted By biwema
Finished my last <400 sequence. Done 645810,...

Finished my last <400 sequence.

Done 645810, index 1008, Size 118
2^2 · 7 · 661 · c114
Forum: Aliquot Sequences 2011-08-15, 11:57
Replies: 6
Views: 727
Posted By biwema
Beginning driver/downdriver questions

[Having a closer look into the factordb]

Oh. I see. My fault. :blush:
I always thought only a 2 * p could be dangerous. Now learned something.

At least there is still hope to get back the...
Showing results 1 to 25 of 381

 
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