 | | From: | Peter Chapman | | Subject: | Enigma 1317 - Eight times | | Date: | 23 Jan 2005 21:51:06 -0800 |
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 | Enigma 1317 - Eight times
New Scientist magazine, 27 November 2004.
by Richard England.
I invite you to find a 5-digit number consisting of five
different digits (not starting with zero) which when
multiplied by 8 produces another 5-digit number consisting
of the other 5 digits; in addition the sum of the digits of
your 5-digit number must be greater than the sum of the
digits of the product.
Which 5-digit number have you found? (Remember that the
answer required as the number as it was before the
multiplication.)
Ciao,
Chappy.
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| | From: | Dan Tilque | | Subject: | Re: Enigma 1317 - Eight times | | Date: | Sun, 23 Jan 2005 22:14:11 -0800 |
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| Peter Chapman wrote:
>
> I invite you to find a 5-digit number consisting of five
> different digits (not starting with zero) which when
> multiplied by 8 produces another 5-digit number consisting
> of the other 5 digits; in addition the sum of the digits of
> your 5-digit number must be greater than the sum of the
> digits of the product.
>
> Which 5-digit number have you found? (Remember that the
> answer required as the number as it was before the
> multiplication.)
;
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;
;
;
;
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;
;
;
;
10679
--
Dan Tilque
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