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 an 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 the above recursive solution:
Python3
# Function to convert decimal number# to binary using recursiondef DecimalToBinary(num): if num >= 1: DecimalToBinary(num // 2) print(num % 2, end = '')# Driver Codeif __name__ == '__main__': # decimal value dec_val = 24 # Calling function DecimalToBinary(dec_val) |
Output
011000
Method #2: Decimal to binary using in-built function
Python3
# Python program to convert decimal to binary # Function to convert Decimal number# to Binary numberdef decimalToBinary(n): return bin(n).replace("0b", "") # Driver codeif __name__ == '__main__': print(decimalToBinary(8)) print(decimalToBinary(18)) print(decimalToBinary(7)) |
Output
1000 10010 111
Method #3:Without in-built function
Python3
# Python program to convert decimal to binary # Function to convert Decimal number# to Binary numberdef decimalToBinary(n): return "{0:b}".format(int(n)) # Driver codeif __name__ == '__main__': print(decimalToBinary(8)) print(decimalToBinary(18)) print(decimalToBinary(7)) |
Output
1000 10010 111
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