Talen 531 till 537 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 531 | = | DXXXI | = | 500 + 10 + 10 + 10 + 1 |
| 532 | = | DXXXII | = | 500 + 10 + 10 + 10 + 1 + 1 |
| 533 | = | DXXXIII | = | 500 + 10 + 10 + 10 + 1 + 1 + 1 |
| 534 | = | DXXXIV | = | 500 + 10 + 10 + 10 + 5 − 1 |
| 535 | = | DXXXV | = | 500 + 10 + 10 + 10 + 5 |
| 536 | = | DXXXVI | = | 500 + 10 + 10 + 10 + 5 + 1 |
| 537 | = | DXXXVII | = | 500 + 10 + 10 + 10 + 5 + 1 + 1 |