Python program to convert decimal to binary number

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:

# 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) 

Output:

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

# 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))  

Output:

1000
10010
111

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Improved By : nidhi_biet