Welcome folks today in this post we will be counting the number of digits inside a number in python using functions and recursion. All the full source code of the application is shown below.

Get Started

In order to get started you need to make an app.py file and copy paste the following code

First of all we will be computing using while loop

app.py

# Python Program to Count Number of Digits in a Number using While loop

Number = int(input("Please Enter any Number: "))
Count = 0
while(Number > 0):
    Number = Number // 10
    Count = Count + 1

print("\n Number of Digits in a Given Number = %d" %Count)

Using Recursion

app.py

# Python Program to Count Number of Digits in a Number Using Recursion

Count = 0
def Counting(Number):
    global Count
    if(Number > 0):
        Count = Count + 1
        Counting(Number//10)
    return Count

Number = int(input("Please Enter any Number: "))
Count = Counting(Number)
print("\n Number of Digits in a Given Number = %d" %Count)

Using Functions

app.py

# Python Program to Count Number of Digits in a Number using Functions

def Counting(Number):
    Count = 0
    while(Number > 0):
        Number = Number // 10
        Count = Count + 1
    return Count

Number = int(input("Please Enter any Number: "))
Count = Counting(Number)
print("\n Number of Digits in a Given Number = %d" %Count)

Now if you execute the python script by typing the below command

python app.py