how many factors of 660 are odd numbers greater than 1 ?
when factorized , 660 has 5 prime factors . of these prime factors 4 are odd and 1 is even . hence total number of odd factors is 2 * 2 * 2 * 2 ( 16 ) , which includes 1 . the total number of odd factors greater than 1 are 15 . ( option e )
divide(660, multiply(const_10, const_2))