Find the last non-zero digit of 30^2345  Choose the most appropriate option.
A) 1  B) 2  C) 3  D) 4  E) 5
30^2345=(3*10)^2345=3^2345*10^2345   so 30^2345 has 2345 zeroes,the last non-zero digit of 30^2345 will be same as unit digit of 3^2345   3^2345=3^(4*586+1)=&gt; 3^1=3   last non-zero digit of 30^2345= 3   ANSWER:3
<result>C</result>
Find the last non-zero digit of 30^2345