+0  
 
0
478
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avatar+4 

is 12 cubes 1728?

ratch  May 28, 2014

Best Answer 

 #2
avatar+890 
+5

1728, Ramanujan's number.

Bertie  May 29, 2014
 #1
avatar
+5

 144

* 12

-----

 288

1440

------

1728

Yes

Guest May 28, 2014
 #2
avatar+890 
+5
Best Answer

1728, Ramanujan's number.

Bertie  May 29, 2014
 #3
avatar+27057 
0

I think Ramanujan's number is 1729 Bertie.  It's the smallest integer that can be expressed as a sum of two cubes in two different ways:

1729 = 13 + 123

1729 = 93 + 103

Alan  May 29, 2014
 #4
avatar+890 
0

Only 1 out, that's not too bad given my memory !

Bertie  May 29, 2014

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