87 squared

87² = 87 × 87 = 7,569

To square a number, multiply it by itself. 87 squared is written 87² or 87^2, and the answer is 7,569.

How to work out 87 squared

Direct: 87 × 87 = 7,569.
From the previous square: 86² = 7,396, and 87² = 7,396 + (2 × 87 − 1) = 7,396 + 173 = 7,569.
Split the number: 87 = 80 + 7, so 87² = 80² + 2 × 80 × 7 + 7² = 6,400 + 1,120 + 49 = 7,569.

Related

87 cubed = 658,503
The square root of 7,569 is 87, so 7,569 is a perfect square.

Squares near 87

Number	Squared
83	6,889
84	7,056
85	7,225
86	7,396
88	7,744
89	7,921
90	8,100
91	8,281

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