The largest number using each of the digits 5,7,8,9 is -
9875
5879
8759
7589
Arranging the digits in descending order to get the largest number 9>8>7>5
So, The largest number =9875
Form the largest and the smallest 4-digit numbers using each of the digits 9,3,0,7.
The biggest 4 digit number formed by using each of the digits 5,7,8,9, without repetition is
find the largest number of four digits using each of the digits 6,0,1,2
The successor of largest four digit number using each of the digits 7, 1, 0, 5 only once is