Talen 2542 till 2548 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 2542 | = | MMDXLII | = | 1000 + 1000 + 500 + 50 − 10 + 1 + 1 |
| 2543 | = | MMDXLIII | = | 1000 + 1000 + 500 + 50 − 10 + 1 + 1 + 1 |
| 2544 | = | MMDXLIV | = | 1000 + 1000 + 500 + 50 − 10 + 5 − 1 |
| 2545 | = | MMDXLV | = | 1000 + 1000 + 500 + 50 − 10 + 5 |
| 2546 | = | MMDXLVI | = | 1000 + 1000 + 500 + 50 − 10 + 5 + 1 |
| 2547 | = | MMDXLVII | = | 1000 + 1000 + 500 + 50 − 10 + 5 + 1 + 1 |
| 2548 | = | MMDXLVIII | = | 1000 + 1000 + 500 + 50 − 10 + 5 + 1 + 1 + 1 |