√57 ≈ 7.5498
√57 is an irrational number, so its decimals never end or repeat. It sits between 7 and 8 because 7² = 49 and 8² = 64.
| Decimal places | Value |
|---|---|
| 0 | 8 |
| 1 | 7.5 |
| 2 | 7.55 |
| 3 | 7.550 |
| 4 | 7.5498 |
| 5 | 7.54983 |
| 10 (digits) | 7.5498344353 |
57 has no perfect-square factor other than 1, so √57 is already in simplest radical form.
7.5498 × 7.5498 ≈ 56.9995, which is very close to 57.
Need another number? Use the square root calculator (also cube roots and other roots).
| Number | Square root |
|---|---|
| 53 | 7.2801 |
| 54 | 7.3485 |
| 55 | 7.4162 |
| 56 | 7.4833 |
| 58 | 7.6158 |
| 59 | 7.6811 |
| 60 | 7.7460 |
| 61 | 7.8102 |