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Search: Posts Made By: Alfred
Forum: Factoring 2020-10-15, 14:46
Replies: 8
Views: 718
Posted By Alfred
Largest 10^86 - c 3-Brilliant Number (p29 * p29 * p29)

10^86 - 2007389 is the largest 86-digit number with three 29-digit prime factors.

The appended file proves this.

Any line (except the last one) has exactly two entries.

The first shows c.
...
Forum: Factoring 2020-10-14, 13:59
Replies: 34
Views: 5,773
Posted By Alfred
Dr Sardonicus, thank you for your...

Dr Sardonicus,

thank you for your explanation.
Forum: Factoring 2020-10-14, 08:54
Replies: 34
Views: 5,773
Posted By Alfred
Dr Sardonicus, does this statement apply to...

Dr Sardonicus,

does this statement apply to largest 2-brilliant numbers in base 10?

If yes, please give an example.
Forum: Factoring 2020-10-06, 20:32
Replies: 8
Views: 718
Posted By Alfred
Largest 10^153-c Brilliant Number (p77*p77)

No 10^153-c with c>0 smaller than 24783 splits as p77*p77.

The attached file shows the smallest prime factor
for any of these c's - or it indicates that 10^153-c is prime.
...
Forum: Factoring 2020-09-30, 06:18
Replies: 8
Views: 718
Posted By Alfred
Yes, of course. Thank you for your information....

Yes, of course.
Thank you for your information.

I'd like to take the numbers 10^153-c.
Forum: Factoring 2020-09-29, 07:01
Replies: 8
Views: 718
Posted By Alfred
Largest 10^151-c Brilliant Number (p76*p76)

No 10^151-c with c>0 smaller than 13731 splits as p76*p76.

The attached file shows one factor (prime or composite but with less digits)
for any of these c's - or it indicates that 10^151-c is...
Forum: Factoring 2020-09-26, 07:55
Replies: 8
Views: 718
Posted By Alfred
Largest 10^147-c Brilliant Number (p74*p74)

No 10^147-c with c>0 smaller than 28239 splits as p74*p74.

The attached file shows one factor (prime or composite but with less digits)
for any of these c's - or it indicates that 10^147-c is...
Forum: Software 2019-09-23, 19:05
Replies: 3
Views: 435
Posted By Alfred
Maybe rlim = alim = 4000000 will help.

Maybe rlim = alim = 4000000 will help.
Forum: Factoring 2018-04-29, 20:16
Replies: 501
Views: 60,266
Posted By Alfred
Thank you. My hardware was a 32-core Xeon E5...

Thank you.

My hardware was a 32-core Xeon E5 v2 @ 3.4 GHz and a mix with the equivalent of 64 cores @ 2.8 GHz.

Collecting ~520e6 unique relations took about 520e6 sec (taking into account the...
Forum: Factoring 2018-04-29, 08:15
Replies: 501
Views: 60,266
Posted By Alfred
c279 = p126 * p153

c279 = (10^279-31)/3
p126 = 683879988020855531843693974570809301443699094596561661475690616530795260027595121999433189270322605879651156172622984209245483
p153 =...
Forum: Msieve 2018-03-18, 18:52
Replies: 2
Views: 843
Posted By Alfred
Thank you for your calming answer.

Thank you for your calming answer.
Forum: Msieve 2018-03-18, 18:09
Replies: 2
Views: 843
Posted By Alfred
warning: zero character

msieve prints these lines to the screen

read 510M relations
warning: zero character
warning: zero character
warning: zero character
warning: zero character
linear algebra completed 2788 of...
Forum: Msieve 2017-10-01, 08:21
Replies: 149
Views: 21,295
Posted By Alfred
153 svn 1005

Using the precompiled exe svn 1005 (downloaded from sourceforge) I get:


Sat Sep 30 17:23:38 2017
Sat Sep 30 17:23:38 2017
Sat Sep 30 17:23:38 2017 Msieve v. 1.53 (SVN 1005)
Sat Sep 30...
Forum: NFS@Home 2017-10-01, 07:47
Replies: 2,768
Views: 109,937
Posted By Alfred
567661^41-1

prp61 factor: 3476277099574273472586508884176537529459408288497659437163063
prp130 factor:...
Forum: NFS@Home 2017-09-30, 07:38
Replies: 2,466
Views: 105,287
Posted By Alfred
567661^41-1 I'm factoring this number, too. ...

567661^41-1

I'm factoring this number, too.
My ETA is 01.10.2017.

Shall I proceed or stop ?

PS: I overlooked that the number was queued on 27.09.2017 (?)
Forum: Msieve 2017-04-02, 07:01
Replies: 2
Views: 766
Posted By Alfred
In the meantime, the c231 is factored. I...

In the meantime, the c231 is factored.

I attach the logfile with some comments,
including the params for the polyfile at the top.
comments are included in the middle of the file, too.

The...
Forum: Msieve 2017-04-01, 10:27
Replies: 2
Views: 766
Posted By Alfred
reduce to 108119486 relation sets and 0 unique ideals

After collecting 183292403 unique relations for a c231,
msieve reduced to 108119486 relation sets and 0 unique ideals,
leading to a failure in LA.


Sat Apr 01 11:51:22 2017 keeping 113702574...
Forum: Factoring 2017-03-04, 19:15
Replies: 501
Views: 60,266
Posted By Alfred
(13*10^218+41)/9

P103 = 1986678560604733846358643845135592826608059500195201650031385071569608599534591180232772666674652352667
P116 =...
Forum: Aliquot Sequences 2017-03-04, 09:20
Replies: 3,350
Views: 262,568
Posted By Alfred
releasing 12012

releasing 12012
Forum: Factoring 2017-02-25, 08:47
Replies: 501
Views: 60,266
Posted By Alfred
(6628^41-1)/6627

p77 factor: 13496129527308607922644762800673867774242281930310854780580324186479901438419
p77 factor: 53107551797939862717119406609260620272620255634423712954678975047404653067479
Forum: Factoring 2017-02-25, 08:40
Replies: 446
Views: 43,075
Posted By Alfred
90^127-1

p71 factor: 33705868751770788522671772661508341148232751858486227539030285620935077
p176 factor:...
Forum: Factoring 2017-01-25, 06:04
Replies: 446
Views: 43,075
Posted By Alfred
90^127-1

reserving 90^127-1
Forum: Factoring 2017-01-18, 22:26
Replies: 446
Views: 43,075
Posted By Alfred
94^128+1

p96 = 114824312833576682096233939349382610434514741158893461618860870964586919790615705117091575064321
p156 =...
Forum: Aliquot Sequences 2017-01-01, 07:36
Replies: 3,350
Views: 262,568
Posted By Alfred
releasing 30450 releasing 877552 releasing...

releasing 30450
releasing 877552
releasing 930966
Forum: Factoring 2016-12-04, 13:51
Replies: 446
Views: 43,075
Posted By Alfred
Reserving 94^128+1

Reserving 94^128+1
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