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Date: Sun, 7 Sep 2014 21:09:51 +0200
From: Manolo =?iso-8859-1?Q?Mart=EDnez?= <manolo@austrohungaro.com>
To: python-list@python.org
Subject: Re: Prime testing [was Re: My backwards logic]
References: <1enj0att6bkrnvb81rhma5dbuk3h28agl8@4ax.com> <lueeat$rdu$1@dont-email.me> <540ae440$0$29995$c3e8da3$5496439d@news.astraweb.com> <mailman.13838.1410025280.18130.python-list@python.org> <c73nsiFcp8eU1@mid.individual.net>
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On 09/07/14 at 06:53pm, Peter Pearson wrote:
> On Sat, 6 Sep 2014 12:53:16 +0200, Manolo Martínez wrote:
> > On 09/06/14 at 08:38pm, Steven D'Aprano wrote:
> >> But even that's not how the specialists do it. If you want to check whether
> >> (say) 2**3000+1 is prime, you don't want to use trial division at all...
> >
> > When I was interested in these things, specialists would use the [number
> > field sieve](https://en.wikipedia.org/wiki/General_number_field_sieve).
> 
> No, one uses the number field sieve to *factor* large numbers.  - 

Ugh. That's what I meant, of course :/