Advertisements
Advertisements
प्रश्न
Find if the following number is a perfect cube.
1938
Advertisements
उत्तर
| 2 | 1938 |
| 3 | 969 |
| 17 | 323 |
| 19 | 19 |
| 1 |
1938 = 2 × 3 × 17 × 19
∴ 1938 is not a perfect cube.
APPEARS IN
संबंधित प्रश्न
Find the smallest number by which the following number must be divided to obtain a perfect cube.
135
Write the cubes of all natural numbers between 1 and 10 and verify the following statements:
(i) Cubes of all odd natural numbers are odd.
(ii) Cubes of all even natural numbers are even.
Write the cubes of 5 natural numbers of the form 3n + 2 (i.e. 5, 8, 11, ...) and verify the following:
'The cube of a natural number of the form 3n + 2 is a natural number of the same form i.e. when it is dividend by 3 the remainder is 2'.
Write the cubes of 5 natural numbers of which are multiples of 7 and verify the following:
'The cube of a multiple of 7 is a multiple of 73'.
What is the smallest number by which the following number must be multiplied, so that the products is perfect cube?
2560
What is the smallest number by which the following number must be multiplied, so that the products is perfect cube?
107811
By which smallest number must the following number be divided so that the quotient is a perfect cube?
8640
Write true (T) or false (F) for the following statement:
If a2 ends in 9, then a3 ends in 7.
Find the cube root of the following natural number 17576 .
Find the cube root of the following natural number 48228544 .
Find the cube root of the following natural number 157464 .
What is the smallest number by which 8192 must be divided so that quotient is a perfect cube? Also, find the cube root of the quotient so obtained.
Find the cube root of the following integer −5832 .
Find the smallest number by which 8768 must be divided so that the quotient is a perfect cube.
Find the cube-root of 729 x 8000
Find the cube-root of -2744000
The cube root of 250047 is 63
Find the smallest number by which 200 should be multiplied to make it a perfect cube
If a2 ends in 5, then a3 ends in 25.
Cube roots of 8 are +2 and –2.
