Advertisements
Advertisements
Question
Using the method of successive subtraction examine whether or not the following numbers is perfect cube 792 .
Advertisements
Solution
We have:
792
1
791
7
784
19
765
37
728
61
667
91
576
127
449
169
280
217
63
∵ The next number to be subtracted is 271, which is greater than 63.
∴ 792 is not a perfect cube.
APPEARS IN
RELATED QUESTIONS
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.
91125
\[\sqrt[3]{8 \times . . .} = 8\]
\[\sqrt[3]{1728} = 4 \times . . .\]
Find The cube root of the numbers 3048625, 20346417, 210644875, 57066625 using the fact that 3048625 = 3375 × 729 .
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
7342 .
Making use of the cube root table, find the cube root
7532 .
Making use of the cube root table, find the cube root
833 .
The cube root of 540 × 50 is ___________
