Square root of 77
The square root of 77 is 8.774964 (rounded to 6 decimal places). It cannot be simplified.
Square root of 77
Pick any whole number from 1 to 10,000.
How to work it out
- 1
The square root of 77 is the number that multiplied by itself gives 77.
- 2
77 is between the perfect squares 8² = 64 and 9² = 81, so its square root is between 8 and 9.
- 3
77 has no square factor bigger than 1, so the radical stays as it is.
- 4
A calculator, or long division of digits, gives
LaTeX source of the formulas on this page
\[ \sqrt{77} = \sqrt{77} \approx 8.774964 \]
\[ \sqrt{77} \]
\[ \sqrt{77} \approx 8.774964 \]Squares around 77
| Number | Squared |
|---|---|
| 7 | 49 |
| 8 | 64 |
| 9 | 81 |
| 10 | 100 |
Questions
What is the square root of 77?
The square root of 77 is 8.774964 (rounded to 6 decimal places). It cannot be simplified.
Is 77 a perfect square?
No. It lies between 8² = 64 and 9² = 81.
What is 77 squared?
77 × 77 = 5929.
What is the square root of 77 rounded to 2 decimals?
8.77.