What three digits are in the units period 4,083,817

In the given number : 4 083 817. Find the 3 digit which is placed in the unit period.
=> The unit period is the digit that is placed in the ones place of the number or the first digit on the right.
=> 7 is the unit period
=> 3 is the another unit period
=> 4 is the another unit period.
Thus, 4, 3 and 7 are the 3 digits placed in the unit period of the given number.