√73 ≈ 8.5440
√73 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 | 8.5 |
| 2 | 8.54 |
| 3 | 8.544 |
| 4 | 8.5440 |
| 5 | 8.54400 |
| 10 (digits) | 8.5440037453 |
73 has no perfect-square factor other than 1, so √73 is already in simplest radical form.
8.5440 × 8.5440 ≈ 72.9999, which is very close to 73.
Need another number? Use the square root calculator (also cube roots and other roots).
| Number | Square root |
|---|---|
| 69 | 8.3066 |
| 70 | 8.3666 |
| 71 | 8.4261 |
| 72 | 8.4853 |
| 74 | 8.6023 |
| 75 | 8.6603 |
| 76 | 8.7178 |
| 77 | 8.7750 |