2
Only once if they are: V, L or D Only four times if they are: I, X, C or M
There are no equivalents. Every number has only one Roman numeral to it.
Only once if they are: V L or D Four times if they are: I X C or M
The numerals: V, L and D are only used once in a row The numerals: I, X, C and M are only used fourfold in a row
2
Since there are only five different digits, a 6-digit number can only be generated if a digit can be repeated. If digits can be repeated, the smallest 6-digit number is 111111.
Only once if they are: V, L or D Only four times if they are: I, X, C or M
9987654321
There is no such number. Since there are infinitely many prime numbers, the only number that can be divided by all of them is zero. But that can also be divided by numbers with repeated factors.
There are no equivalents. Every number has only one Roman numeral to it.
Only once if they are: V L or D Four times if they are: I X C or M
The numerals: V, L and D are only used once in a row The numerals: I, X, C and M are only used fourfold in a row
It is 99,887,765
Dawoodi Bohras
It was the only number system when it was invented
Zero.