Vedic Maths: Cube Root of a Perfect Cube Number
About the video
First of all, let’s understand two mathematical terms. To begin with, “What is the cube root of a number ?” The cube root of a number is defined as the number which results in the original number when it is cubed. For example, for 8, the cube root will be 2 as 2×2×2 = 8. Moving ahead, “What is a Perfect Cube Number ?” A perfect cube is a number that can be expressed as the cube of an integer or as the third exponent of an integer. For example, 64 is a perfect cube because it is the cube of integer 4, 4 × 4 x 4 = 64.
However, 21 is not a perfect cube number because it cannot be expressed as the cube of any integer. This video lecture covers detailed yet easy and fastest steps to find the cube root of the perfect cube number. Here, it would be sufficient if one remembers cubes from 1 to 10. There are no other prerequisites to learn this method. Children from the age group 7 years and above are easily able to learn this method. This Vedic Maths trick is very useful in school, maths exams and competitive exams. Before jumping to this method, we would suggest going through the previous video lecture of cube to better understand this method.