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Odd numbers are defined as numbers of the form 2n+1 for some integer n. Since 0 is an integer, 2x0+1=1 is an odd number. Another way to think of it is that an odd number is one that is not even. An even number is one of the form 2n for some integer n. 1 is not even so it is odd. This means 0 is even, by the way.
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Is the number 1 an odd or even number?
The number 1 is an odd number.
Is 1 and odd or even number?
odd
Why is when you subtract 1 from the square of an odd number it is even?
An odd number multiplied by another odd number will always equal an odd number. Therefore odd2 = odd x odd = odd number. eg 32 = 3 x 3 = 9. Take away 1 and you will have on even number.
Can you get a odd number and subtraction 1 and get a odd number?
no physically you cannot because before an odd number is a even number.
Why if you multiply odd number with another number the result is always odd number?
Well, the question is why. The first number is "even" + 1. Multiply both of these by your odd number. Now the "even" times "odd" is even, because every "1" in the odd number becomes a "2". And then the remaining 1 times "odd" must be odd, which is an even +1. Add it all up and you get evens everywhere except that final "1". So the result is even + 1 which is odd. There is a quicker way if you know how to multiply bracketed terms: odd x odd = (even + 1)x(even +1)= even x even +even +even +1 = must be odd. ========================== You've just read a truly impressive answer to a question slightly different from the one that was asked. The part of the question that comes after "Why if ..." is a false statement. If you multiply odd number with another number, the result is odd number ONLY if the nother number is also odd number.
