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From: Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups: comp.programming
Subject: Re: really? (lame question about primes)
Date: Wed, 02 Sep 2015 18:06:46 +0100
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Johannes Bauer <dfnsonfsduifb@gmx.de> writes:

> On 02.09.2015 15:21, Ben Bacarisse wrote:
>
>>> (Please tell us how you did it.)
>> 
>> Too embarrassed!
>
> sage:
> print(factor(6666666666666666666666666666666664295863450544367679162527001239842359
> ))
> 67499999992406250000094921874999003 * 98765432109876543210987654321098453
>
> Took just over 2 minutes on my system. Was that how you did it?

I used gp (PARI).  I think sage uses gp in places so it may be exactly
the same.

-- 
Ben.