Square root of 9840

The square root of 9840 is 99.196774 (rounded to 6 decimal places). In simplest radical form it is 4√615.

Square root of 9840

Pick any whole number from 1 to 10,000.

\sqrt{9840} = 4\sqrt{615} \approx 99.196774

How to work it out

1
The square root of 9840 is the number that multiplied by itself gives 9840.
2
9840 is between the perfect squares 99² = 9801 and 100² = 10000, so its square root is between 99 and 100.
3
Pull out the biggest square factor: 9840 = 16 × 615, so
$\sqrt{9840} = \sqrt{16 \times 615} = 4\sqrt{615}$
4
A calculator, or long division of digits, gives
$\sqrt{9840} \approx 99.196774$

LaTeX source of the formulas on this page

\[ \sqrt{9840} = 4\sqrt{615} \approx 99.196774 \]
\[ \sqrt{9840} = \sqrt{16 \times 615} = 4\sqrt{615} \]
\[ \sqrt{9840} \approx 99.196774 \]

What is the square root of 9840?

The square root of 9840 is 99.196774 (rounded to 6 decimal places). In simplest radical form it is 4√615.

Is 9840 a perfect square?

No. It lies between 99² = 9801 and 100² = 10000.

What is 9840 squared?

9840 × 9840 = 96825600.

What is the square root of 9840 rounded to 2 decimals?

99.20.