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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,219

Of course it divides m. We said it did. But just because you say the moon is made out of cheese that does not make it so.

The problems is, this prime q and it must exist is outside of our list. We have a contradiction. The original premise is wrong, there is no largest prime.

**In mathematics, you don't understand things. You just get used to them.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 294

Yes, I'm following you. Ok, I'll go re-read the proof to see if there's anything I want to ask you. (I love understanding deeply something, hope it won't bother you.)

Thank you for your help

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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 294

Oh ok, could you explain me where the +1 comes from? It seems rather mysterious...

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,219

Look it over and let me know.

**In mathematics, you don't understand things. You just get used to them.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 294

Just in case you didn't see my second post..

*Last edited by Al-Allo (2013-08-09 05:35:34)*

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,219

It is chosen because it is obviously bigger than p1p2...pn and because it is odd. Also, because it makes the proof work and because he is is brilliant.

**In mathematics, you don't understand things. You just get used to them.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 294

mmmmh.....not following.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,219

Do you see that p1p2...pn is even?

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 294

Well, I don't see why it couldn't be odd.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,219

p1 = 2, so p1p2p3...pn is even.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 294

Ah ok, yes xD Ok so p1p2pn is even

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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 294

so m=p1p2pn+1 is odd

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,219

Yes, so it has a chance of being prime. That is part of the brilliance of his idea.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 294

Mmmhh...it seems rather risky, don't you think ? It has a chance, but this is risky.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,219

How he came up with the idea is beyond me.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 294

In fact, I'm not in agreement with this. How can this be accepted ? WE have many odd numbers not primes.........

*Last edited by Al-Allo (2013-08-09 05:57:57)*

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,219

Agreement with what?

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 294

That m=p1pn2+1 is prime

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,219

He is not saying that. Since it is odd it must be prime or composite.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

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**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 294

ok, anyway, ill be going, if i have any other question, they will be here ! thank you for your support

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,219

Okay, see you later.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

**Online**