Find out the cube roots of a perfect cube

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Reference no: EM131221132

How to find out the cube root of perfect cubes within seconds

To find out the cube roots of a perfect cube, you need to know some of the basic cubes

13= 1, 23 = 8, 33= 27, 43= 64, 53 = 125

63= 216, 73 =343, 83= 512, 93 = 729, 103 = 1000

13

1

Cube of 1 ends with 1

23

8

Cube of 2 ends with 8

33

27

Cube of 3 ends with 7

43

64

Cube of 4 ends with 4

53

125

Cube of 5 ends with 5

63

216

Cube of 6 ends with 6

73

343

Cube of 7 ends with 3

83

512

Cube of 8 ends with 2

93

729

Cube of 9 ends with 9

103

1000

Cube of 10 ends with 0

To find out the cube root of any perfect cube, follow the following steps:

Find out the cube root of 19683.

Find out the cube root of 250047

Find the cube root of 175616

Find the cube root of 941192

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Explanation: Look at the table; we can see that cube of 7 ends with 3, so the unit digit of the required number would be 7

Reference no: EM131221132

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