Talen 2580 till 2586 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 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 |
| 2585 | = | MMDLXXXV | = | 1000 + 1000 + 500 + 50 + 10 + 10 + 10 + 5 |
| 2586 | = | MMDLXXXVI | = | 1000 + 1000 + 500 + 50 + 10 + 10 + 10 + 5 + 1 |