What can I change in my code to extract the first number?

Question

I had a problem with extracting numbers from strings. With all the inputs the code works correctly, but there is a task -

If there are two separate numbers in the string - return the first of them.

So from this string 'only 5 or 6 apples', I should get 5. Not 56 or 5 6. I have no idea what to do.
My code looks like this:

function count(apples) { 
  const number = Math.floor(Number(apples.replace(/[^0-9.]+/g, '')));
  console.log(number);
}