Talen 1271 till 1277 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 1271 | = | MCCLXXI | = | 1000 + 100 + 100 + 50 + 10 + 10 + 1 |
| 1272 | = | MCCLXXII | = | 1000 + 100 + 100 + 50 + 10 + 10 + 1 + 1 |
| 1273 | = | MCCLXXIII | = | 1000 + 100 + 100 + 50 + 10 + 10 + 1 + 1 + 1 |
| 1274 | = | MCCLXXIV | = | 1000 + 100 + 100 + 50 + 10 + 10 + 5 − 1 |
| 1275 | = | MCCLXXV | = | 1000 + 100 + 100 + 50 + 10 + 10 + 5 |
| 1276 | = | MCCLXXVI | = | 1000 + 100 + 100 + 50 + 10 + 10 + 5 + 1 |
| 1277 | = | MCCLXXVII | = | 1000 + 100 + 100 + 50 + 10 + 10 + 5 + 1 + 1 |