Write the greatest six-digit number using four different digits.
The four different digits are 9 , 8 , 7 , 6
The greatest six-digit number using four different digits:
999876
Hence 999876 is required solution
Write the greatest four digit number using two different digits.
Write the greatest and the smallest four-digit numbers using four different digits with the conditions as given : Digit 3 always at hundred's place.
Using the digits 2,3,9 and 6,write the greatest four digit number.
Write the greatest four-digit number of four different digits.
Write the greatest and the smallest four-digit numbers using different digits when digit 5 is at hundreds place.