13 squared

13² = 13 × 13 = 169

To square a number, multiply it by itself. 13 squared is written 13² or 13^2, and the answer is 169.

How to work out 13 squared

• Direct: 13 × 13 = 169.
• From the previous square: 12² = 144, and 13² = 144 + (2 × 13 − 1) = 144 + 25 = 169.
• Split the number: 13 = 10 + 3, so 13² = 10² + 2 × 10 × 3 + 3² = 100 + 60 + 9 = 169.

Related

• 13 cubed = 2,197
• The square root of 169 is 13, so 169 is a perfect square.

Squares near 13

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