Increase ID value depending on entries count

Hi Gentelmen, a quick question. Is it possible to automatically generate an ID for a child element depending on the count of the entry?

Basic version of what I want to create:

<div class="wrapper"> 
    <div id="1">
        <p>Hello this is a div</p>
    </div>
    <div id="2">
        <p>Hello this is a div</p>
    </div>
    <div id="3">
        <p>Hello this is a div</p>
    </div>
</div>

Thanks for your help.