View Compilation Error

0_0_36837773_16764.cpp: In function 'int main()':
0_0_36837773_16764.cpp:22:20: error: invalid operands of types 'int' and '__gnu_cxx::__enable_if<true, double>::__type {aka double}' to binary 'operator%'
         if(n%sqrt(n)==0)
                    ^