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Q: What odd number is not a square number?

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There are infinitely many of them. The square of every odd number will be an odd square number.

-1 is an odd number but not a perfect square.

1 is odd and a perfect square.

Any odd number multiply with itself, or any other odd number results in odd square number.

odd

The square of any odd integer is an odd square number. For example, 3^2 = 9.

The square of any odd number will be an odd square number. eg 12 = 1 32 = 9 52 = 25 etc

no, it is odd

Assuming you know that your number is a perfect square, the square root of an even number is even, and the square root of an odd number is odd.

Half of all square numbers are odd. They are the ones which are the square of an odd number.

All square numbers have an odd number of factors.

Square numbers have an odd number of factors.

Odd.

If by 'perfect number' you mean 'perfect SQUARE', then yes. 49 is an odd number and a perfect square.

An even number is any integer that can be divided by two evenly. A square number is any integer multiplied by itself. 2 is even 3 is odd 4 is even and a square of 2 9 is odd and a square of 3 The square of any even number will itself be an even number, and the square of any odd number will itself be an odd number.

an odd number

An odd number.

1

The square of any odd number is also an odd number for reasons that should be obvious.

No. The square of an odd number will be odd and the square of an even number will be even.Examples:5x5=2511x11=12115x15=2254x4=168x8=6416x16=256

if a number has an odd number of factors it would be a perfect square

if a number has an odd number of factors it would be a perfect square

Square numbers have an odd number of factors.

Square numbers have an odd number of factors.

u can have 81,121,49,9,25,169 ..... if u multiply any odd number by itself it's going to give an odd number and still be a square