Q: Is 3 or 81 or 120 or 27 is a square number?

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81 is the square of 9, and is also a multiple of 3 because 3(27) = 81.

27 and 81

The square root of 6561 is 81

No but 81 is a square number

Expressed as a proper fraction in its simplest form, by dividing the numerator and denominator by 3, 81/120 is equal to 27/40 or twenty-seven fortieths.

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81/120 = 27/40

81 is the square of 9, and is also a multiple of 3 because 3(27) = 81.

The only number in that list which is not a square number is 27. 27 is a cube number.

27 because all the others are square numbers

The square number of 81 is 9. 9 x 9 = 81

120

The square root of 81 is 9 which is a rational number

27 and 81

The square root of 6561 is 81

No but 81 is a square number

Expressed as a proper fraction in its simplest form, by dividing the numerator and denominator by 3, 81/120 is equal to 27/40 or twenty-seven fortieths.

3 is the square root of 9. 9 is a square number. 9 is the square root of 81. 81 is a square number.