It looks like your query is a bit unclear. Could you please clarify what you mean by "what size is 1"? Are you asking about:

• The size of the number 1 in terms of data storage (e.g., bytes)?
• The size of a font or text labeled "1"?
• The size of a clothing item labeled "1"?
• Something else related to size and the number 1?

Please provide more details so I can give you the most accurate and helpful answer!