What is the Square Root of 16?
The square root of 16 (√16) is 4. 16 is a perfect square (4 × 4 = 16).
Exact Answer
√16 = 4
Principal Root (√16)
4
Real Roots
±4
Perfect Square?
Yes (4²)
Exponential Form
16^(1/2)
Step-by-Step Solution: √16 = 4
Step 1
Definition of Square Root
The square root of 16 is the number y such that y × y = 16.
√16 = 4
Summary & Alternative Representations
| Property / Format | Value |
|---|---|
| Principal Root (√16) | 4 |
| Real Roots | ±4 |
| Perfect Square? | Yes (4²) |
| Exponential Form | 16^(1/2) |
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Frequently Asked Questions
Is 16 a perfect square?
Yes, 16 is a perfect square because 4 × 4 = 16.