Square Root of 20

Perfect Square Factors of 20: 1, 4
Largest Perfect Square Factor of 20 = 4
20 = 4 * 5
Simplify by applying the Product Rule for Radicals:
20 = √4 * √5
20 = 2 * √5
20 = 2√5
Square Root of 20: √20 = 2√5 = 4.4721
Square Root of a Number