# [seqfan] Re: smallest number = to the sum of two prime numbers cubed in two (+) ways

Christopher Gribble chris.eveswell at virgin.net
Mon Jul 19 18:57:33 CEST 2010

```The number 1729 is mentioned in "A mathematician's apology" by G. H. Hardy.
>From Wikipedia:
"1729 is known as the Hardy-Ramanujan number after a famous anecdote of the
British mathematician G. H. Hardy regarding a hospital visit to the Indian
mathematician Srinivasa Ramanujan. In Hardy's words:[1]
" I remember once going to see him when he was ill at Putney. I had ridden
in taxi cab number 1729 and remarked that the number seemed to me rather a
dull one, and that I hoped it was not an unfavorable omen. "No," he replied,
"it is a very interesting number; it is the smallest number expressible as
the sum of two cubes in two different ways." ""

Chris Gribble

-----Original Message-----
From: seqfan-bounces at list.seqfan.eu [mailto:seqfan-bounces at list.seqfan.eu]
On Behalf Of N. J. A. Sloane
Sent: 19 July 2010 5:05 PM
To: seqfan at seqfan.eu
Cc: njas at research.att.com
Subject: [seqfan] smallest number = to the sum of two prime numbers cubed in
two (+) ways

Dear Sequence Fans, This was just submitted. Could someone clean it up (edit
it, find more terms, check if is new, etc.)?
Neil

%I A175589
%S A175589 1749
%N A175589 the smallest number = to the sum of two prime numbers cubed in
two (+) ways. the smallest prime number= to the sum of two numbers cubed in
two (+) ways.
%K A175589 nonn
%O A175589 1749,1
%A A175589 stanley cohen (pulseinc(AT)optonline.net), Jul 18 2010

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