Yes, 512 is a perfect cube number since the cube root value of 512 is a whole number. The cube root value of 512 is rational or irrational? As we know, the cube root value is a whole number (cube root of 512 = 8), we can say that it is a rational number.How do you calculate cube root?
To calculate cube root by hand, choose a perfect cube that is as close to the answer as possible, write it down, and subtract your estimate from the original number. For example, you could estimate that the square root of 30 was 3.How do you calculate cube roots?
Cube root of a number can be found by a very simple method which is the prime factorization method.Cube root is denoted by ‘∛ ‘ symbol. Example: ∛8 = ∛(2 × 2 × 2) = 2.Since, 8 is a perfect cube number, it is easy to find the cube root of a number.. Finding the cubic root of non-perfect cube number is a little complex process but can be mastered easily.What are all the perfect cube roots?
Perfect cube is a number whose cube root is an integer Example : 2 3 , 3 3 , 4 3 , 5 3 , 6 3 , 7 3 , … are perfect cube i.e. 8, 27, 64, 125, 216, 343, … are perfect cube