wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Given that 4913 is a perfect cube. Estimate its cube root without factorisation?

Open in App
Solution

By grouping the digits, we get 4 and 913
We know that, since, the unit digit of cube is 3, the unit digit of cube root is 7.
∴ we get 7 as unit digit of the cube root of 4913.
We know 13 = 1 and 23 = 8.
1 > 4 > 8.
Thus, 1 is taken as tenth digit of cube root.
34913= 17.


flag
Suggest Corrections
thumbs-up
25
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Estimating Cube Root
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon