4. TBQ - Find the digital root of consecutive numbers

Determine the digital roots of any 17 consecutive numbers. What do you observe?

The digital roots of any 17 consecutive numbers

does not repeat every \(9\) numbers in this order: \(1, 2, 3, 4, 5, 6, 7, 8, 9\), then cycle back to \(1, 2, 3, ...\).
repeat every \(9\) numbers in this order: \(1, 2, 3, 4, 5, 6, 7, 8, 9\), then cycle back to \(1, 2, 3, ...\)

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