The numbers 1417 to 1423 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 1417 | = | MCDXVII | = | 1000 + 500 − 100 + 10 + 5 + 1 + 1 |
| 1418 | = | MCDXVIII | = | 1000 + 500 − 100 + 10 + 5 + 1 + 1 + 1 |
| 1419 | = | MCDXIX | = | 1000 + 500 − 100 + 10 + 10 − 1 |
| 1420 | = | MCDXX | = | 1000 + 500 − 100 + 10 + 10 |
| 1421 | = | MCDXXI | = | 1000 + 500 − 100 + 10 + 10 + 1 |
| 1422 | = | MCDXXII | = | 1000 + 500 − 100 + 10 + 10 + 1 + 1 |
| 1423 | = | MCDXXIII | = | 1000 + 500 − 100 + 10 + 10 + 1 + 1 + 1 |