View Compilation Error

0_0_36517600_25627.cpp: In function 'int main(int, char**)':
0_0_36517600_25627.cpp:14:8: error: cannot bind 'std::istream {aka std::basic_istream<char>}' lvalue to 'std::basic_istream<char>&&'
   cin>>a;
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:40:0,
                 from 0_0_36517600_25627.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:872:5: note: initializing argument 1 of 'std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = long long int [500005]]'
     operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
     ^
0_0_36517600_25627.cpp:15:13: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   for(j=1;j<a;j++){
             ^
0_0_36517600_25627.cpp:16:9: error: invalid operands of types 'long long int [500005]' and 'long long int' to binary 'operator%'
    if(a%j==0){
         ^