Talen 3666 till 3672 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 3666 | = | MMMDCLXVI | = | 1000 + 1000 + 1000 + 500 + 100 + 50 + 10 + 5 + 1 |
| 3667 | = | MMMDCLXVII | = | 1000 + 1000 + 1000 + 500 + 100 + 50 + 10 + 5 + 1 + 1 |
| 3668 | = | MMMDCLXVIII | = | 1000 + 1000 + 1000 + 500 + 100 + 50 + 10 + 5 + 1 + 1 + 1 |
| 3669 | = | MMMDCLXIX | = | 1000 + 1000 + 1000 + 500 + 100 + 50 + 10 + 10 − 1 |
| 3670 | = | MMMDCLXX | = | 1000 + 1000 + 1000 + 500 + 100 + 50 + 10 + 10 |
| 3671 | = | MMMDCLXXI | = | 1000 + 1000 + 1000 + 500 + 100 + 50 + 10 + 10 + 1 |
| 3672 | = | MMMDCLXXII | = | 1000 + 1000 + 1000 + 500 + 100 + 50 + 10 + 10 + 1 + 1 |