√191 ≈ 13.8203
√191 is an irrational number, so its decimals never end or repeat. It sits between 13 and 14 because 13² = 169 and 14² = 196.
| Decimal places | Value |
|---|---|
| 0 | 14 |
| 1 | 13.8 |
| 2 | 13.82 |
| 3 | 13.820 |
| 4 | 13.8203 |
| 5 | 13.82027 |
| 10 (digits) | 13.8202749611 |
191 has no perfect-square factor other than 1, so √191 is already in simplest radical form.
13.8203 × 13.8203 ≈ 191.0007, which is very close to 191.
Need another number? Use the square root calculator (also cube roots and other roots).
| Number | Square root |
|---|---|
| 187 | 13.6748 |
| 188 | 13.7113 |
| 189 | 13.7477 |
| 190 | 13.7840 |
| 192 | 13.8564 |
| 193 | 13.8924 |
| 194 | 13.9284 |
| 195 | 13.9642 |