Number Names
Think of a positive integer (e.g. 23).
Count the number of letters in its name (e.g. "twenty-three" has 11 letters).
Repeat this process using the new number (e.g. 11 produces the number 6).
What happens as the process continues?
Can you prove why this happens?
Also, what happens if you replicate the problem using numbers in other languages such as German and Italian?
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