C program to check whether given number is divisible by 5 and 7 or not.

Divisibility Check Program

The following C program checks whether a given number is divisible by both 5 and 7.

            
#include <stdio.h>

int main() {
    int number;
    printf("Enter a number: ");
    scanf("%d", &number);

    if (number % 5 == 0 && number % 7 == 0) {
        printf("%d is divisible by both 5 and 7.\n", number);
    } else {
        printf("%d is not divisible by both 5 and 7.\n", number);
    }

    return 0;
}
            
        

Test the Program

Enter a number:

Explanation

1. The program begins by including the standard input/output library stdio.h.
2. In the main() function, an integer variable number is declared to store the user input.
3. The program prompts the user to enter a number using printf().
4. The user's input is read using scanf() and stored in the number variable.
5. An if statement checks if the entered number is divisible by both 5 and 7 using the modulo operator %.
6. If the remainder of the division by 5 is 0 and the remainder of the division by 7 is also 0, the program prints a message stating that the number is divisible by both 5 and 7.
7. If the conditions in the if statement are not met, the program prints a message stating that the number is not divisible by both 5 and 7.
8. The program ends with the return 0; statement, indicating successful execution.