C Program to Print Numbers Until a Multiple of 7 is Found Using the break Statement

In this program, we take input numbers from the user one by one and print them. The loop continues until the user enters a number that is a multiple of 7. As soon as a multiple of 7 is found, the break statement is used to immediately stop the loop.

This is useful when you want to exit a loop based on a specific condition (in this case, the number being divisible by 7), even though the loop could still keep running.

#include <stdio.h>

int main() {
    int num;

    // Infinite loop to keep asking for numbers
    while (1) {
        printf("Enter a number: ");
        scanf("%d", &num);

        // Check if the number is a multiple of 7
        if (num % 7 == 0) {
            printf("Multiple of 7 found. Stopping the loop.\n");
            break;  // Exit the loop
        } else {
            printf("%d is not multiple of 7 \n\n", num);
        }
    }

    return 0;
}

Output - 

Enter a number: 23
23 is not multiple of 7 

Enter a number: 89
89 is not multiple of 7 

Enter a number: 78
78 is not multiple of 7 

Enter a number: 14
Multiple of 7 found. Stopping the loop.