Talen 3780 till 3786 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 3780 | = | MMMDCCLXXX | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 50 + 10 + 10 + 10 |
| 3781 | = | MMMDCCLXXXI | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 50 + 10 + 10 + 10 + 1 |
| 3782 | = | MMMDCCLXXXII | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 50 + 10 + 10 + 10 + 1 + 1 |
| 3783 | = | MMMDCCLXXXIII | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 50 + 10 + 10 + 10 + 1 + 1 + 1 |
| 3784 | = | MMMDCCLXXXIV | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 50 + 10 + 10 + 10 + 5 − 1 |
| 3785 | = | MMMDCCLXXXV | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 50 + 10 + 10 + 10 + 5 |
| 3786 | = | MMMDCCLXXXVI | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 50 + 10 + 10 + 10 + 5 + 1 |