Bihar Police Constable Model Paper 4

Concept Used:
The last digit obtained for any power of a number ending with digit 6 is always 6
i.e. ${\left(6\right)}^1$ = 6
${\left(6\right)}^2$ = 6
${\left(6\right)}^2$ = 6 and so on...
Calculation:
⇒ last digit of the number ${\left(986\right)}^{986}$ = 6
∴ Required last digit = 6