I am student testing and learning new things. Right now I'm trying to make a GUI fan speed controller. While I have made the basic code, I want that the user cant enter smaller value than previous input.

Javscript code

// 30
var range3 = document.getElementById("range3");
var num3 = document.getElementById('num3');

range3.addEventListener('input', function (e) {
num3.value = e.target.value;
});
num3.addEventListener('input', function (e) {
range3.value = e.target.value;
});


// 40
var range4 = document.getElementById("range4");
var num4 = document.getElementById('num4');

range4.addEventListener('input', function (e) {
num4.value = e.target.value;
});
num4.addEventListener('input', function (e) {
range4.value = e.target.value;
});

// 50
var range5 = document.getElementById("range5");
var num5 = document.getElementById('num5');

range5.addEventListener('input', function (e) {
num5.value = e.target.value;
});
num5.addEventListener('input', function (e) {
range5.value = e.target.value;
});


function execute(){                            
    document.getElementById("result").innerHTML =  num3.value + " " +  num4.value + " " + num5.value ;
}

HTML code

     <input id="range3"  type="range" min="0" max="100" value="0" />
        <input id="num3" min="0" max="100" type="number" value="0" />

        <input id="range4"  type="range" min="0" max="100" value="0" />
        <input id="num4" min="0" max="100" type="number" value="0" />

        <input id="range5"  type="range" min="0" max="100" value="0" />
        <input id="num5" min="0" max="100" type="number" value="0" />

        <button onclick="execute()">Click</button>
        <p id="result"></p>