# What is the square root of 722?

Jul 14, 2016

$19 \sqrt{2}$

#### Explanation:

Break 722 down into its prime factors, then we know what we working with.

$722 = 2 \times 19 \times 19$

$\sqrt{722} = \sqrt{2 \times {19}^{2}}$

=$19 \sqrt{2}$