39 squared

39² = 39 × 39 = 1,521

To square a number, multiply it by itself. 39 squared is written 39² or 39^2, and the answer is 1,521.

How to work out 39 squared

Direct: 39 × 39 = 1,521.
From the previous square: 38² = 1,444, and 39² = 1,444 + (2 × 39 − 1) = 1,444 + 77 = 1,521.
Split the number: 39 = 30 + 9, so 39² = 30² + 2 × 30 × 9 + 9² = 900 + 540 + 81 = 1,521.

Related

39 cubed = 59,319
The square root of 1,521 is 39, so 1,521 is a perfect square.

Squares near 39

Number	Squared
35	1,225
36	1,296
37	1,369
38	1,444
40	1,600
41	1,681
42	1,764
43	1,849

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