What is the unit digit in (4137)754? Pick
A) 6
B) 5
C) 9
D) 13
E) 15
Explanation:   Unit digit in (4137)754 = Unit digit in {[(4137)4]188 x (4137)2}   =Unit digit in { 292915317923361 x 17114769 }   = (1 x 9) = 9   9
<result>C</result>
What is the unit digit in (4137)754?