s>number? beginner question

Robert Sander <[email protected]> Thu, 5 Mar 2020 10:35:07 +0100
Newsgroups gmane.comp.lang.forth.gforth
Message-ID <20200305093505.GA2124@pilz>
Hi,

could somebody explain why I only get three cells with zeroes when
using s>number?

Example:

" 123" s>number? .s <3> 0 0 0  ok 3

Thanks

Robert