Question:
can anyone tell the smallest number that can be written as the sum of two cubes?
anonymous
2007-06-20 13:02:56 UTC
can anyone tell the smallest number that can be written as the sum of two cubes?
Eighteen answers:
Madhukar
2007-06-21 02:09:28 UTC
1 cube + 12 cube = 1729

9 cube + 10 cube = 1729



1729 is the smallest numebr that is the sum of two cubes. When Ramanujan was travelling in a taxi he saw this as the number of taxi in front and exclaimed 'Oh! this is the smallest number that is the sum of two cubes!'



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Oshobh
2007-06-21 11:22:19 UTC
2
Udayan
2007-06-21 05:58:11 UTC
1^3 + 1^3 = 2
John V
2007-06-20 20:32:56 UTC
Some assumptions are needed: are the numbers to be cubed positive? Are they whole numbers?



If they are positive whole numbers, excluding 0, then 1^3 + 1^3 = 2. If you include 0, then 0^3 + 0^3 = 0.



If they are positive but not necessarily whole, the smallest number will approach 0, as the cube of a fraction < 1 will be a smaller number than the fraction itself, and the fraction can be made very small.



If they are not necessarily positive, then the smallest number will approach negative infinity, as one answer has stated, since the cube of a large negative number will be a larger negative amount.
?
2007-06-21 08:50:13 UTC
1^3+2^3=1+8=9
sanntovaz
2007-06-21 07:47:34 UTC
if u r considering the numbers both +ve and can be the same number the answer is 2



1^3 + 1^3 = 2



If u r considering the numbers both -ve and can be the same number theanswer is -2



(-1)^3 + (-1)^3 = -2



if u r considering the numbers can be positive and negative and can be the same number the answer is 0



1^3 + (-1)^3 = 0



If u r considering the numbers can be positive and can not be the same number the answer is 9



1^3 + 2^3 = 9

like this way there are combinations check the following



1^3 + (-2)^3 = -8

(-1)^3 + 2^3 = 8
Uncle Al
2007-06-20 20:07:45 UTC
1^3 + 1^3 = 2

1^3 + 2^3 = 9
jw
2007-06-20 22:39:31 UTC
It's not the question you asked, but there is a famous story about the smallest positive integer that can be written as the sum of two cubes in more than one way. Look up "Ramanujan's taxicab number" on the web-- one source is below.
Shwetabh S
2007-06-21 15:29:09 UTC
The anser is 0(for positive no.s)

as 0^3 +0^3=0

or 1^3 +(-1)^3=1-1=0
dip
2007-06-20 20:17:50 UTC
The required answer= 0,

because, 1^3+(-1)^3=0
anonymous
2007-06-21 11:29:51 UTC
(1)^3 +(1)^3 =1
*?{Emie}?*
2007-06-20 23:04:04 UTC
1 to n/e power is 1 so it would b 1 + 1
cooldevil.prash
2007-06-21 09:23:14 UTC
1^3 +(-1)^3 =0^3
BRIAN C
2007-06-20 20:09:26 UTC
Without going negative - it will be 2 surely



(1x1x1) + (1x1x1)



= 1 + 1 = 2



*
junaar
2007-06-21 03:36:23 UTC
if it is a +ve nos answer is1

as 0cube + 1cube =1

if u want a non negative nos the answer is 0

as 1cube + (-1)cube =0

for negative nos no single nos as such
SuMmEr=BoReDoM
2007-06-20 20:39:10 UTC
2 for sure dont listen to them dumb buts
anonymous
2007-06-21 03:52:07 UTC
hy dude if ranges are specified then its gud enough
koolguy
2007-06-20 20:06:02 UTC
negative infinety


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