8642 is the greatist number if all the numbers are not the same and even
greatest number9999987
987654
98765.
999987
That would be 99987.
9,999,876 is the greatest seven-digit number using four different digits.
greatest number9999987
8642
98
9,876,543 is.
987654
98765.
9876 and 1234
99,999,987
99,999,876
999987
That would be 99987.