Square root of 640
The square root of 640 is 25.298221 (rounded to 6 decimal places). In simplest radical form it is 8ā10.
Square root of 640
Pick any whole number from 1 to 10,000.
How to work it out
- 1
The square root of 640 is the number that multiplied by itself gives 640.
- 2
640 is between the perfect squares 25Ā² = 625 and 26Ā² = 676, so its square root is between 25 and 26.
- 3
Pull out the biggest square factor: 640 = 64 Ć 10, so
- 4
A calculator, or long division of digits, gives
LaTeX source of the formulas on this page
\[ \sqrt{640} = 8\sqrt{10} \approx 25.298221 \]
\[ \sqrt{640} = \sqrt{64 \times 10} = 8\sqrt{10} \]
\[ \sqrt{640} \approx 25.298221 \]Squares around 640
| Number | Squared |
|---|---|
| 24 | 576 |
| 25 | 625 |
| 26 | 676 |
| 27 | 729 |
Questions
What is the square root of 640?
The square root of 640 is 25.298221 (rounded to 6 decimal places). In simplest radical form it is 8ā10.
Is 640 a perfect square?
No. It lies between 25Ā² = 625 and 26Ā² = 676.
What is 640 squared?
640 Ć 640 = 409600.
What is the square root of 640 rounded to 2 decimals?
25.30.