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isaactillman05ouqokr
The 3 digits in the units period are 817.

digit 8 is in the hundreds place, digit 1 is in the tens place, and digit 7 is in the ones or units place.

Brainest Answer is appreciated. 
NayeliML
It's 8 because if you see the number the ones section will be around after the hundreds and that how you see what number it go so the awnser is 8