Advertisements
Advertisements
Question
Using prime factorisation, find which of the following are perfect cubes.
1331
Advertisements
Solution
We have, 1331 = 11 × 11 × 11
Since, the prime factors appear in triplets.
So, 1331 is a perfect cube.
APPEARS IN
RELATED QUESTIONS
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.
46656
Find the cube root of the following number by the prime factorisation method.
175616
\[\sqrt[3]{1728} = 4 \times . . .\]
Find The cube root of the numbers 3048625, 20346417, 210644875, 57066625 using the fact that 210644875 = 42875 × 4913 .
Making use of the cube root table, find the cube root
7342 .
Find the smallest number by which 26244 may be divided so that the quotient is a perfect cube.
Find the cube root of -1331.
Each prime factor appears 3 times in its cube.
Using prime factorisation, find which of the following are perfect cubes.
128
