Correct Answer - Option 2 : 872631

**Given**

Digits 2,5,8 and 4 are not working,

Repetition of digit is not allowed

**Calculation**

The Largest number can be formed is 976310

and smallest number can be formed is 103679

⇒ The maximum difference = largest number - smallest number

⇒ 976310 - 103679 = 872631

**∴The maximum difference between 2 number is 872631.**