Brain Teasers
Sum of Cubes
What is the smallest number that is the sum of two different pairs of cubes?
Hint
Cubic inches in a cubic foot might help.Answer
1729.1 cubed + 12 cubed = 1 + 12x12x12 = 1+1728=1729
10 cubed + 9 cubed = 10x10x10 +9x9x9 = 1000 + 729 = 1729
Hide Hint Show Hint Hide Answer Show Answer
What Next?
View a Similar Brain Teaser...
If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.
Solve a Puzzle
Comments hidden to avoid spoilers.
Follow Braingle!