85 squared

85² = 85 × 85 = 7,225

To square a number, multiply it by itself. 85 squared is written 85² or 85^2, and the answer is 7,225.

How to work out 85 squared

Direct: 85 × 85 = 7,225.
From the previous square: 84² = 7,056, and 85² = 7,056 + (2 × 85 − 1) = 7,056 + 169 = 7,225.
Split the number: 85 = 80 + 5, so 85² = 80² + 2 × 80 × 5 + 5² = 6,400 + 800 + 25 = 7,225.

Related

85 cubed = 614,125
The square root of 7,225 is 85, so 7,225 is a perfect square.

Squares near 85

Number	Squared
81	6,561
82	6,724
83	6,889
84	7,056
86	7,396
87	7,569
88	7,744
89	7,921

Need another number? Use the exponent calculator or see all squares and cubes.