Answer
{ }
Work Step by Step
Since the natural numbers (counting numbers) start at 1 and increase; there is no number that matches this description. Therefore, the answer is the empty set.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.