C Programming Code Examples

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program to check whether a number is divisible by 5 and 13 or not

program to check whether a number is divisible by 5 and 13 or not

Write a C program to check whether a number is divisible by 5 and 13 or not using if else. How to check divisibility of any number in C programming. C program to enter any number and check whether it is divisible by 5 and 13 or not.

A number is exactly divisible by some other number if it gives 0 as remainder. To check if a number is exactly divisible by some number we need to test if it leaves 0 as remainder or not.

C supports a modulo operator %, that evaluates remainder on division of two operands. You can use this to check if a number is exactly divisible by some number or not. For example - if(8 % 2), if the given expression evaluates 0, then 8 is exactly divisible by 2.

    Input a number from user. Store it in some variable say j.
    To check divisibility with 5, check if(j % 5 == 0) then j is divisible by 5.
    To check divisibility with 13, check if(j % 13 == 0) then j is divisible by 13.
    Now combine the above two conditions using logical AND operator &&. To check divisibility with 5 and 13 both, check if((j % 5 == 0) && (j % 13 == 0)), then number is divisible by both 5 and 13.

#include <stdio.h>

int main()
{
    int j;

    /* Input number from user */
    printf("Enter any number: ");
    scanf("%d", &j);


    /*
     * If  j modulo division 5 is 0 
     * and j modulo division 13 is 0 then
     * the number is divisible by 5 and 13 both
     */
    if((j % 5 == 0) && (j % 13 == 0))
    {
        printf("Number is divisible by 5 and 13");
    }
    else
    {
        printf("Number is not divisible by 5 and 13");
    }

    return 0;
}