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From: Richard Heathfield <rjh@cpax.org.uk>
Newsgroups: sci.crypt
Subject: Re: The lost key
Date: Tue, 8 Apr 2025 19:48:04 +0100
Organization: Fix this later
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On 08/04/2025 08:26, Richard Harnden wrote:
> On 07/04/2025 23:12, Marcel Logen wrote:

<snip>

>>
>> 2490 is the sum.
> 
> Okay, so meaningless.

Well, it threw me too when it first appeared in this thread, but 
it's actually a step on the road to the digital root of the 
ciphertext: 2+4+9+0=15

1+5=6, so we know that 3 is a factor. It is, therefore, not 
/quite/ meaningless to people who were wondering whether the 
ciphertext was prime.

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
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