Talen 2688 till 2694 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 2688 | = | MMDCLXXXVIII | = | 1000 + 1000 + 500 + 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 + 1 |
| 2689 | = | MMDCLXXXIX | = | 1000 + 1000 + 500 + 100 + 50 + 10 + 10 + 10 + 10 − 1 |
| 2690 | = | MMDCXC | = | 1000 + 1000 + 500 + 100 + 100 − 10 |
| 2691 | = | MMDCXCI | = | 1000 + 1000 + 500 + 100 + 100 − 10 + 1 |
| 2692 | = | MMDCXCII | = | 1000 + 1000 + 500 + 100 + 100 − 10 + 1 + 1 |
| 2693 | = | MMDCXCIII | = | 1000 + 1000 + 500 + 100 + 100 − 10 + 1 + 1 + 1 |
| 2694 | = | MMDCXCIV | = | 1000 + 1000 + 500 + 100 + 100 − 10 + 5 − 1 |