# Trying to understand a code of counting numbers digits in python

#### Tags: count, digits, function, python, while-loop

Can someone explain to me the code below. I need to understand what line 2 and line 5 mean when we count digits of a number (ex. 100).

```def Counting(Number):
Count = 0
while(Number > 0):
Number = Number // 10
Count = Count + 1
print("Number of Digits in a Given Number:", Count)
Counting(100)
```

```Count
```

is the variable used to store the number of digits in Number.

```while (Number > 0):
```

this line continues looping until the Number is 0. In other words it loops while Number is a positive integer.

```Number = Number // 10
```

floor division of Number by 10. When you divide a number by 10, you are “removing” its last digit. For example, in the case of 100, it would be

```100 // 10 = 10
```

or in the case of 12345,

```12345 // 10 = 1234
```

this effectively reduces the number of digits by one.

```Count = Count + 1
```

increments Count, as we have removed one digit from Number.

Source: stackoverflow