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Groups > comp.security.pgp.discuss > #136 > unrolled thread

Re: Who can factorize : 6(10^157 - 1) / 9 - 5 ? [SOLVED]

Started bybarker <name.temporarily.withheld@antispamming.harvard.edu>
First post2012-04-12 06:37 +0200
Last post2012-04-12 15:03 -0700
Articles 3 — 3 participants

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  Re: Who can factorize : 6(10^157 - 1) / 9 - 5 ? [SOLVED] barker <name.temporarily.withheld@antispamming.harvard.edu> - 2012-04-12 06:37 +0200
    Re: Who can factorize : 6(10^157 - 1) / 9 - 5 ? [SOLVED] William Hughes <wpihughes@gmail.com> - 2012-04-12 04:21 -0700
    Re: Who can factorize : 6(10^157 - 1) / 9 - 5 ? [SOLVED] Ludovicus <luiroto@yahoo.com> - 2012-04-12 15:03 -0700

#136 — Re: Who can factorize : 6(10^157 - 1) / 9 - 5 ? [SOLVED]

Frombarker <name.temporarily.withheld@antispamming.harvard.edu>
Date2012-04-12 06:37 +0200
SubjectRe: Who can factorize : 6(10^157 - 1) / 9 - 5 ? [SOLVED]
Message-ID<72516cdb5568b4200803360110390196@msgid.frell.theremailer.net>
Ludovicus <luiroto@yahoo.com> wrote:
> I could not to factorrize the number of 156 six and ended in one.
> Ludovicus

Why? This is trivial and it took me only a few minutes to solve

 6(10^157-1)/9-5 = A * B where A and B are both prime, A<B

A = 628486628437275763243226019561267587348336747741014522686317
and
B = 106074916553805623004662881363542072346327989634793446610616
    80154739676571597744074392683606884633

I logged in only to see if anyone solved my little problem or
trick in the same newsgroups:

Subject: Factorization theory wrong? Or algorithmic error?
Message-ID: <5365904fd6ca3b4f0811f9c0e9b00688@...........>
Date: Thu, 5 Apr 2012 22:19 UTC

One person only solved this:
  Pertti's Ghost <lounesto-legacy@helsinki.edu.fi>
by understanding what is the meaning of "factorizing", and what is
the meaning of "almost", when is April 1 and other issues.

Some other are near misses - but only PG got all the points correct.

Most humiliatingly incorrect was:
  Pubkeybreaker <pubkeybreaker@aol.com>
but no more can be expected from AO Luser or Dullrich.

Thank you,

"barker" (associate of the late falsified Dr Pertti Lounesto)

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#138

FromWilliam Hughes <wpihughes@gmail.com>
Date2012-04-12 04:21 -0700
Message-ID<567b089d-c775-4560-8751-7d3423870262@w5g2000vbp.googlegroups.com>
In reply to#136
On Apr 12, 1:37 am, barker
<name.temporarily.withh...@antispamming.harvard.edu> wrote:
> Ludovicus <luir...@yahoo.com> wrote:
> > I could not to factorrize the number of 156 six and ended in one.
> > Ludovicus
>
> Why? This is trivial and it took me only a few minutes to solve
>
>  6(10^157-1)/9-5 = A * B where A and B are both prime, A<B
>
> A = 628486628437275763243226019561267587348336747741014522686317
> and
> B = 106074916553805623004662881363542072346327989634793446610616
>     80154739676571597744074392683606884633
>
> I logged in only to see if anyone solved my little problem or
> trick in the same newsgroups:
>
> Subject: Factorization theory wrong? Or algorithmic error?
> Message-ID: <5365904fd6ca3b4f0811f9c0e9b00688@...........>
> Date: Thu, 5 Apr 2012 22:19 UTC
>
> One person only solved this:
>   Pertti's Ghost <lounesto-leg...@helsinki.edu.fi>
> by understanding what is the meaning of "factorizing", and what is
> the meaning of "almost", when is April 1 and other issues.


You appear to think that C=C*1 is a non-trivial decomposition
on April 1.  You are wrong  (note no manipulation is needed).

All in all a pretty pathetic effort.


               - William Hughes

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#140

FromLudovicus <luiroto@yahoo.com>
Date2012-04-12 15:03 -0700
Message-ID<10f94926-e3e1-4e30-94de-45f72827d4e1@do4g2000vbb.googlegroups.com>
In reply to#136
On 12 abr, 00:37, barker
<name.temporarily.withh...@antispamming.harvard.edu> wrote:
> Ludovicus <luir...@yahoo.com> wrote:
> > I could not to factorize the number of 156 six and ended in one.

> Why? This is trivial and it took me only a few minutes to solve
>
>  6(10^157-1)/9-5 = A * B where A and B are both prime, A<B
>
> A = 628486628437275763243226019561267587348336747741014522686317
> and
> B = 106074916553805623004662881363542072346327989634793446610616
>     80154739676571597744074392683606884633

Thanks, very much. Can you supply the source of the program utilized?

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