What is the 25100 in roman numeral?

Answer 1

MMMMMMMMMMMMMMMMMMMMMMMMMC

Answer:

The Romans used either an X with a bar over it or a bracketed X to indicate 10,000 and a lined or bracketed V for 5,000. this saved the effort of putting out a large number of similar letters with the accompanying difficulty in rapid comprehension and increased potential for errors.

This would reduce he number to:

___

XXVC or

(XXV)C.

The two X's in this case would be united under a single bar or in a set of brackets. A similar format worked for multiple thousands after 3,000 = MMM.