An equation to prove that a number is odd or even .to help me build a flowchart?

Question

its either TRUE or False , i tried n/2 then if decimal =.0 then it is even, if it is <>.0 it is odd. or if you have other means to prove that a number is even or odd , it would help , OR maybe you could help me build a flowchart :) but really , i want to learn this !
thank you

Answer 1

if n MOD 2 = 0 then even else odd

if you think you might get input outside of the natural numbers then

if (n > 0 and decimal = .0) then (if n MOD 2 =0 then even else odd)

Answer 2

Try MOD 2
If answer = 0 then even
If andwer = 1 then odd

Answer 3

I'm going to use c#, java c c++ shold be just about the same
private bool iseven(int num)
{
bool retval =false;
if((x%2)==0)
retval =true;
return retval;
}

Answer 4

you could use

if int(N/2) = N/2 then "its even" else "its odd"

or if you are familiar with modulo arithmetic then simply use

if N mod 2 = 0 then "its even" else "its odd"

Answer 5

any number continuously divided by two should give 1 for example 2/2=2,4/2=2/2=1....got it

Answer 6

try this:
if (n & 0x1)
the number is odd
else
the number is even