public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int t = sc . nextInt ( ) ;
  int n , count2 , count3 ;
  boolean flag ;
  for ( int i = 0 ;
  i < t ;
  i ++ ) {
    n = sc . nextInt ( ) ;
    flag = true ;
    count2 = 0 ;
    count3 = 0 ;
    while ( n != 1 ) {
      if ( n % 2 == 0 ) {
        count2 ++ ;
        n = n / 2 ;
      }
      else if ( n % 3 == 0 ) {
        count3 ++ ;
        n = n / 3 ;
      }
      else {
        flag = false ;
        System . out . println ( "-1" ) ;
        break ;
      }
    }
    if ( flag ) {
      if ( count2 <= count3 ) {
        System . out . println ( 2 * count3 - count2 ) ;
      }
      else {
        System . out . println ( "-1" ) ;
      }
    }
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int t = sc . nextInt ( ) ; int n , count2 , count3 ; boolean flag ; for ( int i = 0 ; i < t ; i ++ ) { n = sc . nextInt ( ) ; flag = true ; count2 = 0 ; count3 = 0 ; while ( n != 1 ) { if ( n % 2 == 0 ) { count2 ++ ; n = n / 2 ; } else if ( n % 3 == 0 ) { count3 ++ ; n = n / 3 ; } else { flag = false ; System . out . println ( " - 1" ) ; break ; } } if ( flag ) { if ( count2 <= count3 ) { System . out . println ( 2 * count3 - count2 ) ; } else { System . out . println ( " - 1" ) ; } } } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier))) (local_variable_declaration type: (boolean_type) declarator: (variable_declarator name: (identifier))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (assignment_expression left: (identifier) right: (true))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))) (while_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (block (expression_statement (update_expression (identifier))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (block (expression_statement (update_expression (identifier))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))))) alternative: (block (expression_statement (assignment_expression left: (identifier) right: (false))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) (break_statement)))))) (if_statement condition: (parenthesized_expression (identifier)) consequence: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (binary_expression left: (decimal_integer_literal) right: (identifier)) right: (identifier)))))) alternative: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))))))))))