16 squared

16² = 16 × 16 = 256

To square a number, multiply it by itself. 16 squared is written 16² or 16^2, and the answer is 256.

How to work out 16 squared

• Direct: 16 × 16 = 256.
• From the previous square: 15² = 225, and 16² = 225 + (2 × 16 − 1) = 225 + 31 = 256.
• Split the number: 16 = 10 + 6, so 16² = 10² + 2 × 10 × 6 + 6² = 100 + 120 + 36 = 256.

Related

• 16 cubed = 4,096
• The square root of 256 is 16, so 256 is a perfect square.

Squares near 16

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