Advertisements
Advertisements
प्रश्न
Using prime factorisation, find which of the following are perfect cubes.
128
Advertisements
उत्तर
We have, 128 = 2 × 2 × 2 × 2 × 2 × 2 × 2
Since, 2 remains after grouping in triplets.
So, 128 is not a perfect cube.
APPEARS IN
संबंधित प्रश्न
Find the cube root of the following number by the prime factorisation method.
512
Find the cube root of the following number by the prime factorisation method.
110592
Using the method of successive subtraction examine whether or not the following numbers is perfect cube 345 .
Using the method of successive subtraction examine whether or not the following numbers is perfect cube 1331 .
\[\sqrt[3]{\frac{27}{125}} = \frac{. . .}{5}\]
The volume of a cubical box is 474.552 cubic metres. Find the length of each side of the box.
Evaluate:
Making use of the cube root table, find the cube root
833 .
Find the cube root of -1331.
Using prime factorisation, find the cube roots of 512
