what is the unit digit in [(6273)^1793x(625)^317x(341)^491]?  Pick one:
A) 0
B) 2
C) 3
D) 5
E) None of them
Unit digit in (6374)^1793=Unit digit in (4)^1793   =Unit digit in [(4^2)^896 x 4]   =Unit digit in (6x4)=4   Unit digit in (625)^317=Unit digit in (5)^317=5   Unit digit in (341)^491=Unit digit in (1)^491=1   Required digit = Unit digit in (4x5x1)=0   0nswer is 0
<result>A</result>
what is the unit digit in [(6273)^1793x(625)^317x(341)^491]?