What is mmcdxvii in roman numerals?

Answer 1

Add together the individual numerals (M = 1000, D = 500, C = 100, L = 50, X = 10, V = 5, I = 1) unless a smaller numeral precedes a larger one in which case subtract it from the larger ones.

→ mmcdxvii = 1000 + 1000 + (-100 + 500) + 10 + 5 + 1 + 1 = 2417

Answer 2

M represents 1000, D is 500, X is 10 and C is 100. This would convert to 2417.