In this article, we will write a very simple C program to check if a number is divisible by 3 and 5.

## C Program to check if a given number is divisible by 3 and 5

This program first takes an integer number as an input from the user. Then, it checks if the number is divisible by both 3 and 5 using the modulo operator `%`

. If the remainder when dividing the input number by 3 is 0 and the remainder when dividing by 5 is 0, then the number is divisible by both 3 and 5, else it is not divisible by both.

#include <stdio.h>

int main() {

int num;

// Input number from user

printf("Enter a number: ");

scanf("%d", &num);

// Check if the number is divisible by both 3 and 5

if (num % 3 == 0 && num % 5 == 0) {

printf("%d is divisible by both 3 and 5.\n", num);

} else {

printf("%d is not divisible by both 3 and 5.\n", num);

}

return 0;

}

### Output:

Output 1:

Enter a number: 15

15 is divisible by both 3 and 5.

Output 2:

Enter a number: 12

12 is not divisible by both 3 and 5.

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