I even tried to searc about this.
I think rational number means if we get any remainder when we divide a number with 2 then it is known as rational number. am i right
Number not divisible by 2 is either odd number or prime number. Rational number includes odd numbers and prime numbers. What about even, whole, decimals and fractions? Rational numbers include all except few non repeating decimal numbers and integers.
first you read what you have written.you said that number not divisible by 2 is either odd number or prime number.its true in the case of odd number.but if you check the list again 2 is a prime number and you should know that 2 is also an even number and every even number is divisible by 2.so relating this statement with the above said by you that number not divisible by 2 is prime number is wrong.because 2 itself is divisible by 2 and it is a prime number also.
so im not wrong here..its just that you have misunderstood the words or have mixed my words.