The numbers 1315 to 1321 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 1315 | = | MCCCXV | = | 1000 + 100 + 100 + 100 + 10 + 5 |
| 1316 | = | MCCCXVI | = | 1000 + 100 + 100 + 100 + 10 + 5 + 1 |
| 1317 | = | MCCCXVII | = | 1000 + 100 + 100 + 100 + 10 + 5 + 1 + 1 |
| 1318 | = | MCCCXVIII | = | 1000 + 100 + 100 + 100 + 10 + 5 + 1 + 1 + 1 |
| 1319 | = | MCCCXIX | = | 1000 + 100 + 100 + 100 + 10 + 10 − 1 |
| 1320 | = | MCCCXX | = | 1000 + 100 + 100 + 100 + 10 + 10 |
| 1321 | = | MCCCXXI | = | 1000 + 100 + 100 + 100 + 10 + 10 + 1 |