## C Program to print the first digit of a given number

### Description

```Get input num and display the first digit of number num
Input:
675
Output:
6```

### Solution

```#include<stdio.h>
int main()
{
int n,num;
scanf("%d",&num);
n=num;
while(num>=10)
{
num/=10;
}
printf("%d is the first digit in %d",num,n);
return 0;
}
```

### Explanation

```Instruction(s) inside the while block{} are executed repeatedly till  expression (num>=10) is true.

Divide the number num by 10 untill it becomes lesser than 10. once it is less than 10 print the num using printf statement.

statement num = num/10 divides the num by 10 repeatedly untill it num is less than 10.```

#### Author - Ramesh P Natarajan

Learner, Professor, Technology Trainer, Software Developer and Content Marketer, very much passionate in the field of Software Application Development, Machine Learning and Search Engine Optimization.

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