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31. Write a number whose cube is —1?

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32. If a number ends in I, then its cube ends in

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33. If the square of a number ends in 5, then its cube ends in

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34.

Find the cube root of each of the following numbers by prime factorisation method.

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35.

Find the cube root of each of the following numbers by prime factorisation method.
512

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36. Find the cube root of each of the following numbers by prime factorisation method.
(iii) 10648

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37.

Find the cube root of each of the following numbers by prime factorisation method.

27000

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38.

Find the cube root of each of the following numbers by prime factorisation method.

(v) 15625

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39.

Find the cube root of each of the following numbers by prime factorisation method.

(vi) 13824

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(vii) By prime factorisation, we have

110592 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3

∴ $cube root of 110592 space equals space$ 2 x 2 x 2 x 2 x 3 = 48

Thus, the cube root of 110592 is 48

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