title: LaTex How to remove trailing zeros in scientific notion
body: <p>When using large numbers I'd like to use scinetific notation in LaTex. However, because of the trailing zeros it gets worse.
  E.g.</p>
  <pre><code>\num[scientific-notation=true,  exponent-product=\ensuremath{\cdot}]{250000000000000000000}
  </code></pre>
  <p><a href="https://i.stack.imgur.com/kJEb8.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kJEb8.png" alt="enter image description here" /></a></p>