4 squared

4² = 4 × 4 = 16

To square a number, multiply it by itself. 4 squared is written 4² or 4^2, and the answer is 16.

How to work out 4 squared

Direct: 4 × 4 = 16.
From the previous square: 3² = 9, and 4² = 9 + (2 × 4 − 1) = 9 + 7 = 16.

Related

4 cubed = 64
The square root of 16 is 4, so 16 is a perfect square.

Squares near 4

Number	Squared
1	1
2	4
3	9
5	25
6	36
7	49
8	64

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