# Python Program to find the largest digit of a number using recursion

In this program, you will learn how to find the largest digit of a number using recursion in Python.

```
123 => 3
2341 => 4
```

## Example: How to find the largest digit of a number using recursion in Python

```
lar = 0
def largestdigit(n):
global lar
if n > 0:
r = n % 10
if lar < r:
lar = r
largestdigit(int(n / 10))
return lar
n = int(input("Enter a number:"))
ld = largestdigit(n)
print("Largest digit:", ld)
```

#### Output:

```
Enter a number:3421
Largest digit: 4
```