Question

please tell full formula.
​

Answer 1

Answer.Therefore 3 is the smallest number that should be multiplied by 6561 to obtain a perfect cube. Therefore,cube root of 19683=3×3×3=27.

Answer 2

Step-by-step explanation:

Prime factorization of,

6561=(3×3×3)×(3×3×3)×(3×3)

Only two 3's in 3rd bracket , if there would be one more 3 then the final number will be a perfect cube.

Therefore 3 is the smallest number that should be multiplied by 6561 to obtain a perfect cube.

Hence required number=6561×3=19683

Prime factorization of,

19683=(3×3×3)×(3×3×3}×(3×3×3)

Therefore,cube root of 19683=3×3×3=27.