Talen 3215 till 3221 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 3215 | = | MMMCCXV | = | 1000 + 1000 + 1000 + 100 + 100 + 10 + 5 |
| 3216 | = | MMMCCXVI | = | 1000 + 1000 + 1000 + 100 + 100 + 10 + 5 + 1 |
| 3217 | = | MMMCCXVII | = | 1000 + 1000 + 1000 + 100 + 100 + 10 + 5 + 1 + 1 |
| 3218 | = | MMMCCXVIII | = | 1000 + 1000 + 1000 + 100 + 100 + 10 + 5 + 1 + 1 + 1 |
| 3219 | = | MMMCCXIX | = | 1000 + 1000 + 1000 + 100 + 100 + 10 + 10 − 1 |
| 3220 | = | MMMCCXX | = | 1000 + 1000 + 1000 + 100 + 100 + 10 + 10 |
| 3221 | = | MMMCCXXI | = | 1000 + 1000 + 1000 + 100 + 100 + 10 + 10 + 1 |