99,997
9650 is the largest formed by re-ordering the digits.
99997
Without using exponents or factorials, that's it.
943
772
99997
It is 963.
the largest five digit number that can be formed using the digits 7 and 9 is 97,000
651
985
9876543210, without using any mathemeatical operations.
The largest four-digit odd number that can be formed using the digits 1-9 is 9871. This number uses the highest available digits while ensuring the last digit is odd, which is necessary for the number to be classified as odd.