# Check for a self-dividing number in JavaScript

We are required to write a JavaScript function that takes in a number and determines whether or not it is a self−dividing number.

• A self−dividing number is a number that is divisible by every digit it contains.

• It should output “This number is self−dividing” if it is otherwise, it should output “This number is NOT self−dividing”.

For example,

• 128 is a self−dividing number because 1, 2, and 8 are all divisors of 128.

• Another example, 102 is not a self−diving number because it contains a digit 0.

• As a 3rd example, 26 is not a self−dividing number, because it’s not divisible by 6.

## Example

The code for this will be −

const num1 = 128;
const num2 = 102;
const num3 = 26;
const selfDivisible = num =>{
let n = num;
while(num){
let temp = num % 10;
if(n % temp !== 0){
return false;
};
num = Math.floor(num/10);
};
return true;
};
console.log(selfDivisible(num1));
console.log(selfDivisible(num2));
console.log(selfDivisible(num3));

## Output

And the output in the console will be −

true
false
false

Updated on: 21-Nov-2020

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