What can the maximum number of digits be in the repeating block of digits in the decimal expansion of 1/17 ? Perform the division to check your answer.

The maximum number of digits that can be in the repeating block of digits in the decimal expansion of 1/17 is 16 (less than 17).
By performing the actual division, we get
1/17 = 0.058823529411764705882352941176470588235294117647…
So, the maximum number of digits that can be in the repeating block of digits in the decimal expansion of 1/17 is 16.