√142 ≈ 11.9164
√142 is an irrational number, so its decimals never end or repeat. It sits between 11 and 12 because 11² = 121 and 12² = 144.
| Decimal places | Value |
|---|---|
| 0 | 12 |
| 1 | 11.9 |
| 2 | 11.92 |
| 3 | 11.916 |
| 4 | 11.9164 |
| 5 | 11.91638 |
| 10 (digits) | 11.9163752878 |
142 has no perfect-square factor other than 1, so √142 is already in simplest radical form.
11.9164 × 11.9164 ≈ 142.0006, which is very close to 142.
Need another number? Use the square root calculator (also cube roots and other roots).
| Number | Square root |
|---|---|
| 138 | 11.7473 |
| 139 | 11.7898 |
| 140 | 11.8322 |
| 141 | 11.8743 |
| 143 | 11.9583 |
| 144 | 12 |
| 145 | 12.0416 |
| 146 | 12.0830 |