874321 is the largest number made from all these digits.
99 is the largest two digit number. If I can use the digits anyway I want, then 9 to the 9th power is larger
You get the largest number if you sort the digits, from largest to smallest.
Any number you want that doesn‘t have 2, 4, 6, 8, 0.
Using the digits 12279, the largest number that can be represented is 97,221.
the largest five digit number that can be formed using the digits 7 and 9 is 97,000
If the digits are only used once, each, the largest possible number would be 97,531
The largest even number that can be made with those digits is 9740 .
The largest odd number that can be made with those digits is 9407 .
9650 is the largest formed by re-ordering the digits.
-- Any number that you can write as a whole number, a fraction, or a mixed number, using digits, is rational. -- Any number that you can completely write down on paper, using digits, is rational.
Without using exponents or factorials, that's it.
97632 is the largest number containing these digits. To make the largest number simply order the numbers in descending order. As it happens this results in an even number so nothing further is necessary.
The usual or common way to write a number using digits
Depending on exactly how you define "using the digits 7 and 9", it would be 99999, or 99997.