17 squared

17² = 17 × 17 = 289

To square a number, multiply it by itself. 17 squared is written 17² or 17^2, and the answer is 289.

How to work out 17 squared

Direct: 17 × 17 = 289.
From the previous square: 16² = 256, and 17² = 256 + (2 × 17 − 1) = 256 + 33 = 289.
Split the number: 17 = 10 + 7, so 17² = 10² + 2 × 10 × 7 + 7² = 100 + 140 + 49 = 289.

Related

17 cubed = 4,913
The square root of 289 is 17, so 289 is a perfect square.

Squares near 17

Number	Squared
13	169
14	196
15	225
16	256
18	324
19	361
20	400
21	441

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