To check whether an integer is even or odd the remainder is calculated when it is divided by 2 using modulus operator

**%.**If remainder is zero then number is even if not that number is odd.

Some of the even numbers are :

2, 4, 6, 8,10,12

Some of the odd numbers are :

1, 3, 5, 7, 9, 11

For the better understanding of this program you have to know more about the following C++ programming topic(s) :

C++ Flow Control

#### The formula is to calculate quotient and remainder is

num % 2 == 0 then number is even

### Example#4.0: C++ program to check whether number(integer) is even or odd without function

#### Output

Enter an integer : 1258

1258 is even integer.

### Example#4.1: C++ program to check whether number(integer) is even or odd using function

#### Output

Enter an integer : 1258

1258 is even integer.

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