Question

What leat number should be added to 1719 to get a perfect cube ?

Answer 1

Ans:--The given number is 1719

we have to do prime factorization....

1719 - 3*3*191

1719 - 3^2 * 191

The power of 3 is 2

 the power of 191 is one

To become a perfect cube...the power should be 3

so....we have to multiply 191 two times...and 3 should be multiplied one time...

191*191*3

109443

109443 should be multiplied with 1719 to become perfect cube...