Talen 2578 till 2584 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 2578 | = | MMDLXXVIII | = | 1000 + 1000 + 500 + 50 + 10 + 10 + 5 + 1 + 1 + 1 |
| 2579 | = | MMDLXXIX | = | 1000 + 1000 + 500 + 50 + 10 + 10 + 10 − 1 |
| 2580 | = | MMDLXXX | = | 1000 + 1000 + 500 + 50 + 10 + 10 + 10 |
| 2581 | = | MMDLXXXI | = | 1000 + 1000 + 500 + 50 + 10 + 10 + 10 + 1 |
| 2582 | = | MMDLXXXII | = | 1000 + 1000 + 500 + 50 + 10 + 10 + 10 + 1 + 1 |
| 2583 | = | MMDLXXXIII | = | 1000 + 1000 + 500 + 50 + 10 + 10 + 10 + 1 + 1 + 1 |
| 2584 | = | MMDLXXXIV | = | 1000 + 1000 + 500 + 50 + 10 + 10 + 10 + 5 − 1 |