How do you find odd or even in n number of value?

-- First of all, if the number is a fraction or a decimal, then don't worry about it.

Only whole numbers are considered odd or even.

-- All multiples of 2 are even numbers, and that's easy to recognize. It doesn't

matter how big the number is, or how many digits it has. You only have to look

at the last digit (the one on the right-hand end). If that digit is 2, 4, 6, 8, or 0,

then the whole big number is even. Otherwise it's odd.