The numbers 1685 to 1691 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 1685 | = | MDCLXXXV | = | 1000 + 500 + 100 + 50 + 10 + 10 + 10 + 5 |
| 1686 | = | MDCLXXXVI | = | 1000 + 500 + 100 + 50 + 10 + 10 + 10 + 5 + 1 |
| 1687 | = | MDCLXXXVII | = | 1000 + 500 + 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 |
| 1688 | = | MDCLXXXVIII | = | 1000 + 500 + 100 + 50 + 10 + 10 + 10 + 5 + 1 + 1 + 1 |
| 1689 | = | MDCLXXXIX | = | 1000 + 500 + 100 + 50 + 10 + 10 + 10 + 10 − 1 |
| 1690 | = | MDCXC | = | 1000 + 500 + 100 + 100 − 10 |
| 1691 | = | MDCXCI | = | 1000 + 500 + 100 + 100 − 10 + 1 |