What is the unit digit of (217)413 × (819)547 × (414)624 × (342)812?
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Answered by
7
2 will be the unit digit of (217)413.........
roni25:
no ,correct ans is 8
Answered by
9
Answer:
Step-by-step explanation:
if 413 is divded by 4 then remainder will 1 so 217 unit digit is 7 and in second 819 when we dive 547 by 4 them remainder will 3 and unit digit will 9 and in third 414 624 is dived by 4 there is no remainder so it unit digit will be 4 and last 342 812 when we dived by 4 then remainder will be 0 it's unit digit will also 2 and after its multiply and last digit will 4.
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