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.
64
Find the cube root of the following number by the prime factorisation method.
10648
Find the cube root of the following number by the prime factorisation method.
13824
\[\sqrt[3]{480} = \sqrt[3]{3} \times 2 \times \sqrt[3]{. . .}\]
\[\sqrt[3]{\frac{512}{. . .}} = \frac{8}{13}\]
Find The cube root of the numbers 3048625, 20346417, 210644875, 57066625 using the fact that 57066625 = 166375 × 343 .
Making use of the cube root table, find the cube root
37800 .
Find the cube root of 8000.
Find the cube root of 216.
Using prime factorisation, find the cube roots of 2197
