How many factors of 270 are odd numbers greater than 1? Choose the correct choice from the following.
A) 3  B) 4  C) 5  D) 6  E) 9
prime factors of 810 are 2^1,3^4,5^1   total divisors = (power if a prime factor+1)   total no. of odd factors(3,5,) = (4+1)(1+1) =10   since we need odd divisors other than 1 =&gt;10-1= 
<gadget id="calculator">10-1</gadget>
<output>9</output>
9 odd divisors   9 is the answer
<result>E</result>
How many factors of 270 are odd numbers greater than 1?