PARI's commands - Page 48

3.14159 · 2010-08-15, 17:58

@CRG: Meh, it was merely an example:

P.S: 984590208798456603272674974591352925800155174351667200000001 = a * b.
a = ?
b = ?

kar_bon · 2010-08-15, 18:24

Quote:

Originally Posted by 3.14159

984590208798456603272674974591352925800155174351667200000001 = a * b.
a = ?
b = ?

Easy: a=2767736217171712590811493916037679; b=355738456103518130652787919.

3.14159 · 2010-08-15, 18:33

Quote:

Originally Posted by Karsten

Easy: a=2767736217171712590811493916037679; b=355738456103518130652787919.

Ah, Karsten..

Try this:

3926977978817782120812171811446076146921298887218404481814742743335404324334280021808922828450687924731740960737624418284115998083029359303967375360000000000001.

(Approx: 160 digits)

CRGreathouse · 2010-08-15, 18:45

Does it help if we can factor N - 1? Unfortunately it has two large prime factors:

N = 1 + 2^54 * 3^28 * 5^13 * 7^9 * 11^5 * 13^4 * 17^3 * 19^3 * 23^2 * 29^2 * 31 * 37 * 41 * 43 * 47 * 53 * 59 * 149 * 2719 * 40177 * 2154169 * 11425981639192559335306912111 * 23559568800258192242020219435698229

kar_bon · 2010-08-15, 18:49

Sorry to mention this... It's the wrong thread!

Purpose of this thread?

Perhaps make a "Posts from PI and SM88" - thread instead!

CRGreathouse · 2010-08-15, 18:53

Yes, I've thought about that too. Maybe two threads: a new 'general pi and sm discussion" on MM and a "Pari Bootcamp" on Software?

kar_bon · 2010-08-15, 18:56

Quote:

Originally Posted by CRGreathouse

Yes, I've thought about that too. Maybe two threads: a new 'general pi and sm discussion" on MM and a "Pari Bootcamp" on Software?

Yes, should be better. There're some more PARI users who can profit from those small codes without reading hundreds of posts with non-PARI contents!

science_man_88 · 2010-08-15, 19:02

Quote:

Originally Posted by kar_bon

Yes, should be better. There're some more PARI users who can profit from those small codes without reading hundreds of posts with non-PARI contents!

why'd you think I tried getting back on topic lol.

3.14159 · 2010-08-15, 19:06

Quote:

Originally Posted by CRGreathouse

Does it help if we can factor N - 1? Unfortunately it has two large prime factors:

N = 1 + 2^54 * 3^28 * 5^13 * 7^9 * 11^5 * 13^4 * 17^3 * 19^3 * 23^2 * 29^2 * 31 * 37 * 41 * 43 * 47 * 53 * 59 * 149 * 2719 * 40177 * 2154169 * 11425981639192559335306912111 * 23559568800258192242020219435698229

Were you trying to apply the P-1 factoring method?

Quote:

Originally Posted by Karsten

Sorry to mention this... It's the wrong thread!

Purpose of this thread?

Perhaps make a "Posts from PI and SM88" - thread instead!

Karsten, it's funny when you're outside of your sandbox.

I think that would also be the very first *user-specific* thread around here.

Quote:

Originally Posted by science_man_88

why'd you think I tried getting back on topic lol.

When were we off topic?

Quote:

Originally Posted by CRGreathouse

Yes, I've thought about that too. Maybe two threads: a new 'general pi and sm discussion" on MM and a "Pari Bootcamp" on Software?

A general discussion thread belongs in the Lounge or the Soap Box, not the Misc. Maths section.

I think this post would be suited to fit in the Forum Feedback section.

CRGreathouse · 2010-08-15, 19:09

Quote:

Originally Posted by 3.14159

Were you trying to apply the P-1 factoring method?

No, because I don't know anything about the powersmoothness of p-1, just about that of n-1.

Quote:

Originally Posted by 3.14159

So you're going to make a "user-specific" section, where I/sm88 would be trapped in forever?

I think the point (IMO correct) is that this thread is off-topic.

CRGreathouse · 2010-08-15, 19:10

Quote:

Originally Posted by 3.14159

A general discussion thread belongs in the Lounge or the Soap Box, not the Misc. Maths section.

I think this post would be suited to fit in the Forum Feedback section.

I don't think this is GD, though; it's about math and programming primarily.

2010-08-15, 17:58	#518
3.14159 May 2010 Prime hunting commission. 3220₈ Posts	@CRG: Meh, it was merely an example: P.S: 984590208798456603272674974591352925800155174351667200000001 = a * b. a = ? b = ? Last fiddled with by 3.14159 on 2010-08-15 at 18:05

2010-08-15, 18:45	#521
CRGreathouse Aug 2006 3×1,993 Posts	Does it help if we can factor N - 1? Unfortunately it has two large prime factors: N = 1 + 2^54 * 3^28 * 5^13 * 7^9 * 11^5 * 13^4 * 17^3 * 19^3 * 23^2 * 29^2 * 31 * 37 * 41 * 43 * 47 * 53 * 59 * 149 * 2719 * 40177 * 2154169 * 11425981639192559335306912111 * 23559568800258192242020219435698229 Last fiddled with by CRGreathouse on 2010-08-15 at 18:45

2010-08-15, 18:49	#522
kar_bon Mar 2006 Germany 2²×727 Posts	Sorry to mention this... It's the wrong thread! Purpose of this thread? Perhaps make a "Posts from PI and SM88" - thread instead! Last fiddled with by kar_bon on 2010-08-15 at 18:49

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2010-08-15, 18:53	#523
CRGreathouse Aug 2006 3×1,993 Posts	Yes, I've thought about that too. Maybe two threads: a new 'general pi and sm discussion" on MM and a "Pari Bootcamp" on Software?