Skip to content
Related Articles

Related Articles

Python program to convert decimal to binary number
  • Difficulty Level : Easy
  • Last Updated : 22 Jan, 2021

Given a decimal number as input, the task is to write a Python program to convert the given decimal number into equivalent binary number.
Examples : 

Input : 7                                                         
Output :111

Input :10
Output :1010

Method #1: Recursive solution

DecimalToBinary(num):
        if num >= 1:
            DecimalToBinary(num // 2)
            print num % 2 

Below is the implementation of above recursive solution: 

Python3

filter_none

edit
close

play_arrow

link
brightness_4
code

# Function to convert decimal number
# to binary using recursion
def DecimalToBinary(num):
     
    if num >= 1:
        DecimalToBinary(num // 2)
    print(num % 2, end = '')
 
# Driver Code
if __name__ == '__main__':
     
    # decimal value
    dec_val = 24
     
    # Calling function
    DecimalToBinary(dec_val)

chevron_right


Output



011000

Method #2: Decimal to binary using in-built function 

Python3

filter_none

edit
close

play_arrow

link
brightness_4
code

# Python program to convert decimal to binary
   
# Function to convert Decimal number
# to Binary number
def decimalToBinary(n):
    return bin(n).replace("0b", "")
   
# Driver code
if __name__ == '__main__':
    print(decimalToBinary(8))
    print(decimalToBinary(18))
    print(decimalToBinary(7))

chevron_right


Output

1000
10010
111

Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course.

My Personal Notes arrow_drop_up
Recommended Articles
Page :