Advertisements
Advertisements
प्रश्न
Using the method of successive subtraction examine whether or not the following numbers is perfect cube 345 .
उत्तर
We have:
345
1
344
7
337
19
318
37
281
61
220
91
129
127
2
∵ The next number to be subtracted is 161, which is greater than 2.
∴ 345 is not a perfect cube.
APPEARS IN
संबंधित प्रश्न
Find the cube root of the following numbers by the prime factorisation method.
27000
Find the cube root of the following number by the prime factorisation method.
46656
\[\sqrt[3]{480} = \sqrt[3]{3} \times 2 \times \sqrt[3]{. . .}\]
Three numbers are to one another 2 : 3 : 4. The sum of their cubes is 0.334125. Find the numbers.
Making use of the cube root table, find the cube roots 7
Making use of the cube root table, find the cube root
7342 .
Making use of the cube root table, find the cube root
0.27
Find the cube root of -1331.
Using prime factorisation, find which of the following are perfect cubes.
1331
By what smallest number should 3600 be multiplied so that the quotient is a perfect cube. Also find the cube root of the quotient.
