Python program to check whether a number is even or odd|4 ways

Python program to check whether a number is even or odd|4 ways

In this tutorial, we will discuss the Python program to check whether a number is even or odd

In this post, we are going to learn how to check whether  the given number is even or odd in Python language

Code to check whether a number is even or odd -using standard method

Program 1

num=345
if(num%2)==0:
    print("{0} is even".format(num))
else:
    print("{0} is odd".format(num))

When the above code is executed, it produces the following result

345 is odd

 

In this program,

• integer variables num is declared and initialized
• The given number is tested whether it is odd or even
• Then,the program is displayed the output of using print() function.

 

Code to check whether a number is even or odd -using user input

Program 2

num=int(input("Enter a number: "))
if(num%2)==0:
    print("{0} is even".format(num))
else:
    print("{0} is odd".format(num))

When the above code is executed, it produces the following result

case 1

Enter a number: 4567
4567 is odd

case 2

Enter a number: 486
486 is even

 

Approach

• integer variable num is declared.
• The program asks input from the user
• Then the user enters the input values for num.
• The program will read the input using input stream and store to the variable num
• The given number is tested whether it is odd or even.
• Then,the program is displayed the output of using printf() function,

Code to check whether a number is even or odd -using function

Program 3

#Python function to check Even or Odd
num=int(input("Enter a number: "))
def checkOddEven(num):
    if (num%2==0):
      print(num," is Even")
    else:
      print(num," is Odd")

checkOddEven(num)  #call the function
     

When the above code is executed, it produces the following result

case 1

Enter a number: 179
179 is Odd

Case 2

Enter a number: 210
210 is Even

 

Approach

• integer variable num is declared.
• The program takes input from the user
• Then the user enters the input values for num.
• The program will read the input using input stream and store to the variable num
• Define the function to check whether number is odd or even.
• calling the function
• Finally the program is displayed the output using print() function.

 

Code to check whether a number is even or odd -using recursion

Program 4

#Code to check whether a number is even or odd -using recursion
def isEven(num):#function definition
    if(num>2):
        return (num%2==0)
    return(isEven(num-2))

num=int(input("Enter a number to check odd or even: "))
#receive input from the user and stores variabe num
if(isEven(num)==True):
   # number is passed as argument to the function
   print(num," is an even")
else:
    print(num," is an odd")

When the above code is executed, it produces the following result

Case 1

Enter a number to check odd or even: 657
(657, ' is an odd')

Case 2

Enter a number to check odd or even: 7654
(7654, ' is an even')

 

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