square number

American  

noun

1. a number that is the square of another integer, as 1 of 1, 4 of 2, 9 of 3, etc.

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square number British  

noun

1. an integer, such as 1, 4, 9, or 16, that is the square of an integer

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Etymology

Origin of square number

First recorded in 1550–60

Example Sentences

See Examples For:

square number

After all, it is neither a prime number nor a power of 2 nor a square number.

From Scientific American ● Mar. 3, 2023

Therefore in every case where 8x2 + 1 = a square number, x2 is also a triangular.

From Amusements in Mathematics by Henry Ernest Dudeney

Then came the further order, "All pyramids are to contain a square number of balls."

From Amusements in Mathematics by Henry Ernest Dudeney

It will be found in either case that if the contents of any two of the three boxes be combined, they form a square number of coins.

From Amusements in Mathematics by Henry Ernest Dudeney

The lowest square number containing all the nine digits once, and once only, is 139,854,276, the square of 11,826.

From Amusements in Mathematics by Henry Ernest Dudeney