Q: Why would 123 be a odd number?

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113+7+3 = 123

123 is not a multiple of 6 but 6 is. When an even whole number is multiplied by any other whole number the result is always an even number. 6 is an even number, 123 is an odd numbers; therefore 123 cannot be a multiple of 6. 6 = 6 × 1; therefore 6 is a multiples of 6.

An odd number squared would always equal an odd number and an even number squared would always equal an even

They are: -39 -41 -43 = -123

An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. 431 is an odd number.

Related questions

odd

Yes.

125

For instance 123.

It would be even.

It would be even.

I would call an odd number factor a factor that is an odd number. I would call a number with an odd number of factors a perfect square.

113+7+3 = 123

123 is not a multiple of 6 but 6 is. When an even whole number is multiplied by any other whole number the result is always an even number. 6 is an even number, 123 is an odd numbers; therefore 123 cannot be a multiple of 6. 6 = 6 × 1; therefore 6 is a multiples of 6.

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

An odd number squared would always equal an odd number and an even number squared would always equal an even