infinity
The largest number you can write using Roman numerals without an overline at any symbol is 3999 (MMMCMXCIX), and the largest possible number is 3999999 (MMMCMXCIXCMXCIX, with an overline over the first nine letters.
874321 is the largest number made from all these digits.
86432
In the decimal system, the largest digit in any place is 9.
infinity
The largest number you can write using Roman numerals without an overline at any symbol is 3999 (MMMCMXCIX), and the largest possible number is 3999999 (MMMCMXCIXCMXCIX, with an overline over the first nine letters.
99 is the largest two digit number. If I can use the digits anyway I want, then 9 to the 9th power is larger
5678 + 8765 = 14443 would yield the largest possible sum.
There is no largest number. You can just keep going.
99
874321 is the largest number made from all these digits.
24 is equal to 8 x 3 (the largest possible power of 2), making 23 * 3.
99,999,998
Use the following algorithm (written in pseudocode). Let largest be the lowest possible real number. Let smallest be the greatest possible real number. Repeat while there is input... { Read real number r from input. If r is greater than largest then let largest be r. If r is less than smallest then let smallest be r. } End repeat. Let range be largest minus smallest. Output range.
That would be 999.
86432