How about 27 whose cube root is 3 which is a rational whole number.
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a perfect cube
sure , take cube root of 3, that is irrational, but when you cube it you have 3 which is clearly rational! Doctor Chuck aka mathdoc
It is a perfect cube.
It is 1 multiplied by the number three times and is called a perfect cube.
not a whole number. 6 is 216, and 7 is 343 the cube root of 333 is 6.93