1) ∛64

64 = 2 x 32

= 2 x 2 x 16

= 2 x 2 x 2 x 8

= 2 x 2 x 2 x 2 x 4

=

There are two groups, so from each group take one factor

∴ ∛64 = 2 x 2

∴

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2)

∛13824 Solution :After resolving the prime factors, we get 13824 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 Grouping = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3Taking one factor from each group ∛13824 = 2 x 2 x 2 x 3 ∛13824 = 24 |

• Cube of Numbers

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• Estimating cube root

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