## C Program To Count Digits of Number

Learn How To Count Digits of Number in C Programming Language. It is important that we should know** How A For Loop Works** before getting further with the C Program Code.

#### Method 1: C Program To Count Digits of an Integer using While Loop

#include<stdio.h> int main() { int num1, count = 0, rem; printf("\nEnter a Number:\t"); scanf("%d", &num1); while(num1 != 0) { num1 = num1/10; count++; } printf("\nTotal Count:\t%d\n", count); return 0; }

#### Method 2: Count Number of Digits in a Number in C Programming using** For Loop**

#include<stdio.h> int main() { int num1, count, rem; printf("\nEnter a Number:\t"); scanf("%d", &num1); for(count = 0; num1 != 0; count++;) { num1 = num1/10; } printf("\nTotal Count:\t%d\n", count); return 0; }

#### Method 3: **C Program To Count Digits of a Number using Function**

#include<stdio.h> int count(int x); int main() { int res, num; printf("\nEnter a Number:\t"); scanf("%d", &num); res = count(num); printf("\nNumber of Digits : \t%d\n", res); return 0; } int count(int x) { int total = 0, i; if(x == 0) { return total; } else { for(i = 0;x != 0;i++) { x = x/10; total++; } return total; } }

#### Output

In case you get any Compilation Errors with this Program To Count Digits of Number in C Programming Language or you have any doubt about it, let us know about it in the Comment Section below.

Please help me to understand the difference between Modulus Operator and Division Operator in this C Prpgram to find the number of digits in the number.

This means that we just have to remove the digits in a number one by one and simultaneously count the removals till the number is not equal to zero.