Talen 3821 till 3827 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 3821 | = | MMMDCCCXXI | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 10 + 10 + 1 |
| 3822 | = | MMMDCCCXXII | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 10 + 10 + 1 + 1 |
| 3823 | = | MMMDCCCXXIII | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 10 + 10 + 1 + 1 + 1 |
| 3824 | = | MMMDCCCXXIV | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 10 + 10 + 5 − 1 |
| 3825 | = | MMMDCCCXXV | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 10 + 10 + 5 |
| 3826 | = | MMMDCCCXXVI | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 10 + 10 + 5 + 1 |
| 3827 | = | MMMDCCCXXVII | = | 1000 + 1000 + 1000 + 500 + 100 + 100 + 100 + 10 + 10 + 5 + 1 + 1 |