Question

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

(i) 13824 (ii) 15625​

Answer 1

Answer:

1)24 2) 25

Step-by-step explanation:

2 13824

2 6912

2 3456

2 1728

2 864

2 432

2 216

2 108 = 2x2x2x2x2x2x2x2x2x3x3x3

2 54 =2x2x2x3=24

3 27

3 9

3 3

1

5 15625

5 3125

5 625

5 125 = 5x5x5x5x5x5

5 25 = 5x5=25

5 5

1

Answer 2

2 13824

2 6912

2 3456

2 1728

2 864

2 432

2 216

2 108

2 54

3 27

3 9

3 3 =2×2×2×2×2×2×2×2×2×3×3×3 =24

1

HOPE IT HELPS YOU