Talen 3123 till 3129 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 3123 | = | MMMCXXIII | = | 1000 + 1000 + 1000 + 100 + 10 + 10 + 1 + 1 + 1 |
| 3124 | = | MMMCXXIV | = | 1000 + 1000 + 1000 + 100 + 10 + 10 + 5 − 1 |
| 3125 | = | MMMCXXV | = | 1000 + 1000 + 1000 + 100 + 10 + 10 + 5 |
| 3126 | = | MMMCXXVI | = | 1000 + 1000 + 1000 + 100 + 10 + 10 + 5 + 1 |
| 3127 | = | MMMCXXVII | = | 1000 + 1000 + 1000 + 100 + 10 + 10 + 5 + 1 + 1 |
| 3128 | = | MMMCXXVIII | = | 1000 + 1000 + 1000 + 100 + 10 + 10 + 5 + 1 + 1 + 1 |
| 3129 | = | MMMCXXIX | = | 1000 + 1000 + 1000 + 100 + 10 + 10 + 10 − 1 |