Talen 1813 till 1819 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 1813 | = | MDCCCXIII | = | 1000 + 500 + 100 + 100 + 100 + 10 + 1 + 1 + 1 |
| 1814 | = | MDCCCXIV | = | 1000 + 500 + 100 + 100 + 100 + 10 + 5 − 1 |
| 1815 | = | MDCCCXV | = | 1000 + 500 + 100 + 100 + 100 + 10 + 5 |
| 1816 | = | MDCCCXVI | = | 1000 + 500 + 100 + 100 + 100 + 10 + 5 + 1 |
| 1817 | = | MDCCCXVII | = | 1000 + 500 + 100 + 100 + 100 + 10 + 5 + 1 + 1 |
| 1818 | = | MDCCCXVIII | = | 1000 + 500 + 100 + 100 + 100 + 10 + 5 + 1 + 1 + 1 |
| 1819 | = | MDCCCXIX | = | 1000 + 500 + 100 + 100 + 100 + 10 + 10 − 1 |