Count Number of Digits in a given number

Write a C program to Count Number of Digits in a given number. Here’s simple C program to Count Number of Digits in a given number in C Programming Language.

Numbers in C

Normally, when we work with Numbers, we use primitive data types such as int, short, long, float and double, etc. The number data types, their possible values and number ranges have been explained while discussing C Data Types.

Here is source code of the C program to Count Number of Digits in a given number. The C program is successfully compiled and run(on Codeblocks) on a Windows system. The program output is also shown in below.

SOURCE CODE : :

/* C program to Count Number of Digits in a given number  */

#include <stdio.h>

int main()
{
    int num,tNum,cnt;

    printf("\nEnter any number :: ");
    scanf("%d",&num);

    cnt=0;
    tNum=num;

    while(tNum>0){
        cnt++;
        tNum/=10;
    }

    printf("\nNumber of digits in [ %d ] is :: [ %d ].\n" ,num,cnt);

    return 0;
}

OUTPUT : :

/* C program to Count Number of Digits in a given number  */

Enter any number :: 12323423

Number of digits in [ 12323423 ] is :: [ 8 ].

Process returned 0

Above is the source code for C program to Count Number of Digits in a given number which is successfully compiled and run on Windows System.The Output of the program is shown above .

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