Talen 2178 till 2184 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 2178 | = | MMCLXXVIII | = | 1000 + 1000 + 100 + 50 + 10 + 10 + 5 + 1 + 1 + 1 |
| 2179 | = | MMCLXXIX | = | 1000 + 1000 + 100 + 50 + 10 + 10 + 10 − 1 |
| 2180 | = | MMCLXXX | = | 1000 + 1000 + 100 + 50 + 10 + 10 + 10 |
| 2181 | = | MMCLXXXI | = | 1000 + 1000 + 100 + 50 + 10 + 10 + 10 + 1 |
| 2182 | = | MMCLXXXII | = | 1000 + 1000 + 100 + 50 + 10 + 10 + 10 + 1 + 1 |
| 2183 | = | MMCLXXXIII | = | 1000 + 1000 + 100 + 50 + 10 + 10 + 10 + 1 + 1 + 1 |
| 2184 | = | MMCLXXXIV | = | 1000 + 1000 + 100 + 50 + 10 + 10 + 10 + 5 − 1 |