Talen 2491 till 2497 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 2491 | = | MMCDXCI | = | 1000 + 1000 + 500 − 100 + 100 − 10 + 1 |
| 2492 | = | MMCDXCII | = | 1000 + 1000 + 500 − 100 + 100 − 10 + 1 + 1 |
| 2493 | = | MMCDXCIII | = | 1000 + 1000 + 500 − 100 + 100 − 10 + 1 + 1 + 1 |
| 2494 | = | MMCDXCIV | = | 1000 + 1000 + 500 − 100 + 100 − 10 + 5 − 1 |
| 2495 | = | MMCDXCV | = | 1000 + 1000 + 500 − 100 + 100 − 10 + 5 |
| 2496 | = | MMCDXCVI | = | 1000 + 1000 + 500 − 100 + 100 − 10 + 5 + 1 |
| 2497 | = | MMCDXCVII | = | 1000 + 1000 + 500 − 100 + 100 − 10 + 5 + 1 + 1 |