Since 21 fails the divide by two test it would seem to be odd.
21 is an odd composite number
It is odd.
an odd number
There can be no number with an odd sum of 8 because 8 is not odd!
The sum of any four odd numbers will never be equal to an odd number.
21 is an odd composite number
It is odd.
An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. 21 is an odd number.
The number 21 is odd since it cannot be divided by two to make a whole number.
an odd number
There can be no number with an odd sum of 8 because 8 is not odd!
Yes
The sum of any four odd numbers will never be equal to an odd number.
15
21
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First odd number greater than 20 is 21 Last odd number less than 200 is 199 → number of odd numbers between 20 and 200 is (199 - 21) ÷ 2 + 1 = 90