Square Root of 256
Calculate √256 instantly — exact value, step-by-step explanation, and properties.
How to Calculate √256
The square root of 256 is exactly 16. This is because 16 × 16 = 256. Since 256 is a perfect square, its square root is a whole number. You can verify: 16² = 16 × 16 = 256.
√256 = 16 (because 16 × 16 = 256) Properties of √256
Perfect Square?
Yes
256 = 16², so its square root is a whole number.
Decimal Value
16
Exact integer result.
Square Root Symbol
√256
Also written as 256^(1/2) or 256^0.5 in programming.
Related Square Root Values
Reference table of square roots near 256 for quick comparison.
Frequently Asked Questions
What is the square root of 256?
The square root of 256 is exactly 16. Since 256 is a perfect square, √256 = 16.
Is 256 a perfect square?
Yes, 256 is a perfect square. It equals 16², meaning 16 × 16 = 256.
How do you calculate √256 by hand?
Since 256 is a perfect square, you can find √256 by identifying which integer multiplied by itself equals 256. The answer is 16, because 16 × 16 = 256.
What is √256 in simplified radical form?
√256 = 16. Since it's a perfect square, no radical form is needed.