What is the roman numerals for the number four.
The I roman numeral is equal to the number 1:
I = 1
The V roman numeral is equal to the number 5:
V = 5
Four is equal to five minus one:
4 = 5 - 1
IV is equal to V minus I:
IV = V - I
So the roman numerals for the number 4 is written as IV:
4 = IV