JSFiddle - React, Tailwind, and code Playground

HTML

<div id="number">1</div>
<div id="result"></div>

JavaScript

var number = parseInt($('#number').text()),
    remainder = number % 5,
    result = $('#result');

console.log(remainder);

if (number < 10){
	if (remainder == 1) {
        number = number + 4;
    } else if (remainder == 2){
        number = number + 3;
    }else if (remainder == 3){
        number = number + 2;
    }else if (remainder == 4){
        number = number + 1;
    } else if (remainder == 0){
    	return
    }
} else if (number < 15 && number > 10) {
    if (remainder == 1) {
        number = number + 4;
    } else if (remainder == 2){
        number = number + 3;
    }else if (remainder == 3){
        number = number + 2;
    }else if (remainder == 4){
        number = number + 1;
    } else if (remainder == 0){
    	return
    }
} else if (number <= 20 && number > 15) {
    if (remainder == 1) {
        number = number + 14;
    } else if (remainder == 2){
        number = number + 13;
    }else if (remainder == 3){
        number = number + 12;
    }else if (remainder == 4){
        number = number + 11;
    } else if (remainder == 0){
    	 number = number + 10;
    }
} else if(number < 25 && number > 20) {
	if (remainder == 1) {
        number = number + 9;
    } else if (remainder == 2){
        number = number + 8;
    }else if (remainder == 3){
        number = number + 7;
    }else if (remainder == 4){
        number = number + 6;
    } else if (remainder == 0){
    	 return
    }
} else if(number < 30 && number > 25) {
	if (remainder == 1) {
        number = number + 4;
    } else if (remainder == 2){
        number = number + 3;
    }else if (remainder == 3){
        number = number + 2;
    }else if (remainder == 4){
        number = number + 1;
    } else if (remainder == 0){
    	return
    }
} else if(number < 35 && number > 30) {
	if (remainder == 1) {
        number = number + 4;
    } else if (remainder == 2){
        number = number + 3;
    }else if (remainder == 3){
        number = number + 2;
    }else if (remainder == 4){
     ...