Square Root of 400
The square root of 400 is exactly 20. Yes, 400 is a perfect square. Its square root, 20, is a whole number.
√400
20
Simplified Radical Form
20
Perfect Square
Yes
Frequently Asked Questions
What is the square root of 400?
The square root of 400 is exactly 20.
Is 400 a perfect square?
Yes, 400 is a perfect square. Its square root, 20, is a whole number.
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