The numbers 1403 to 1409 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 1403 | = | MCDIII | = | 1000 + 500 − 100 + 1 + 1 + 1 |
| 1404 | = | MCDIV | = | 1000 + 500 − 100 + 5 − 1 |
| 1405 | = | MCDV | = | 1000 + 500 − 100 + 5 |
| 1406 | = | MCDVI | = | 1000 + 500 − 100 + 5 + 1 |
| 1407 | = | MCDVII | = | 1000 + 500 − 100 + 5 + 1 + 1 |
| 1408 | = | MCDVIII | = | 1000 + 500 − 100 + 5 + 1 + 1 + 1 |
| 1409 | = | MCDIX | = | 1000 + 500 − 100 + 10 − 1 |