Square Root of 406 (√406 = 20.149442)

Exact Answer

√406 = 20.149442

Principal Root (√406)

20.149442

Real Roots

±20.149442

Perfect Square?

No (Irrational)

Exponential Form

406^(1/2)

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Step-by-Step Solution: √406 = 20.149442

Step 1

Definition of Square Root

The square root of 406 is the number y such that y × y = 406.

√406 = 20.149442

Summary & Alternative Representations

Property / Format	Value
Principal Root (√406)	`20.149442`
Real Roots	`±20.149442`
Perfect Square?	`No (Irrational)`
Exponential Form	`406^(1/2)`

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Frequently Asked Questions

Is 406 a perfect square?

No, 406 is not a perfect square; its decimal approximation is 20.149442.