111 squared

111² = 111 × 111 = 12,321

To square a number, multiply it by itself. 111 squared is written 111² or 111^2, and the answer is 12,321.

How to work out 111 squared

• Direct: 111 × 111 = 12,321.
• From the previous square: 110² = 12,100, and 111² = 12,100 + (2 × 111 − 1) = 12,100 + 221 = 12,321.
• Split the number: 111 = 110 + 1, so 111² = 110² + 2 × 110 × 1 + 1² = 12,100 + 220 + 1 = 12,321.

Related

• 111 cubed = 1,367,631
• The square root of 12,321 is 111, so 12,321 is a perfect square.

Squares near 111

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