How do you write 545 in Roman numerals?

How do you write 545 in Roman numerals?

Why is 545 Written in Roman Numerals as DXLV? We know that in roman numerals, we write 5 as V, 40 as XL, 500 as D, and 100 as C. Therefore, 545 in roman numerals is written as DXLV = D + XL + V = 500 + 40 + 5 = DXLV.