√79 ≈ 8.8882
√79 is an irrational number, so its decimals never end or repeat. It sits between 8 and 9 because 8² = 64 and 9² = 81.
| Decimal places | Value |
|---|---|
| 0 | 9 |
| 1 | 8.9 |
| 2 | 8.89 |
| 3 | 8.888 |
| 4 | 8.8882 |
| 5 | 8.88819 |
| 10 (digits) | 8.8881944173 |
79 has no perfect-square factor other than 1, so √79 is already in simplest radical form.
8.8882 × 8.8882 ≈ 79.0001, which is very close to 79.
Need another number? Use the square root calculator (also cube roots and other roots).
| Number | Square root |
|---|---|
| 75 | 8.6603 |
| 76 | 8.7178 |
| 77 | 8.7750 |
| 78 | 8.8318 |
| 80 | 8.9443 |
| 81 | 9 |
| 82 | 9.0554 |
| 83 | 9.1104 |