81
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-730
729 243,3 81,3,3 27,3,3,3 9,3,3,3,3 3,3,3,3,3,3 3^6 = 729 The cube root is 3^2, or 9.
729 cubic inches.
The cube root of 729 is 9 and 9 squared is 81.
No because the square root of 729 is 27 which is a rational number.