The Square Root symbol (√). Copy and paste it, or use its Unicode, HTML, and CSS codes.
More from Math.
The quickest way is to copy √ from this page and paste it anywhere. You can also insert it with its Unicode, HTML, or alt code listed above.
√ is U+221A (decimal 8730).
Use √ in HTML to render √ on a web page.
On Windows you can type it with Alt+8730 (hold Alt and enter the number on the numeric keypad).
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