The numbers 165 to 171 in roman numerals
The right column shows how each roman numeral adds up to the total.
| 165 | = | CLXV | = | 100 + 50 + 10 + 5 |
| 166 | = | CLXVI | = | 100 + 50 + 10 + 5 + 1 |
| 167 | = | CLXVII | = | 100 + 50 + 10 + 5 + 1 + 1 |
| 168 | = | CLXVIII | = | 100 + 50 + 10 + 5 + 1 + 1 + 1 |
| 169 | = | CLXIX | = | 100 + 50 + 10 + 10 − 1 |
| 170 | = | CLXX | = | 100 + 50 + 10 + 10 |
| 171 | = | CLXXI | = | 100 + 50 + 10 + 10 + 1 |