Talen 3865 till 3871 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 3865 | = | MMMDCCCLXV | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 50 + 10 + 5 |
| 3866 | = | MMMDCCCLXVI | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 50 + 10 + 5 + 1 |
| 3867 | = | MMMDCCCLXVII | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 50 + 10 + 5 + 1 + 1 |
| 3868 | = | MMMDCCCLXVIII | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 50 + 10 + 5 + 1 + 1 + 1 |
| 3869 | = | MMMDCCCLXIX | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 50 + 10 + 10 − 1 |
| 3870 | = | MMMDCCCLXX | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 50 + 10 + 10 |
| 3871 | = | MMMDCCCLXXI | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 50 + 10 + 10 + 1 |