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.
Using the digits 12279, the largest number that can be represented is 97,221.