140 squared

140² = 140 × 140 = 19,600

To square a number, multiply it by itself. 140 squared is written 140² or 140^2, and the answer is 19,600.

How to work out 140 squared

Direct: 140 × 140 = 19,600.
From the previous square: 139² = 19,321, and 140² = 19,321 + (2 × 140 − 1) = 19,321 + 279 = 19,600.

Related

140 cubed = 2,744,000
The square root of 19,600 is 140, so 19,600 is a perfect square.

Squares near 140

Number	Squared
136	18,496
137	18,769
138	19,044
139	19,321
141	19,881
142	20,164
143	20,449
144	20,736

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