If z = 343 * 64 * 9 / 63, Find the unit digit of z,
Select the correct option
A) 5	B) 1	C) 3	D) 2	E) 6
z = 343 * 64 * 9 / 63   z = 7^3 * 4^3 * 3^2 / 3^2 * 7   z = 7^2 * 4^3   z = 3136   Ans: 6
<result>E</result>
If z = 343 * 64 * 9 / 63, Find the unit digit of z,