How many factors of 30 are odd numbers greater than 1?  Choose the correct choice from the following choices.
A) 3 B) 3 C) 5 D) 6 E) 7
prime factors of 30 are 2^1,3^1,5^1   total divisors = (power if a prime factor+1)   total no. of odd factors(3,5,) = (1+1)(1+1) =4   since we need odd divisors other than 1 =&gt;4-1= 
<gadget id="calculator">4-1</gadget>
<output>3</output>
3 odd divisors   3 is the answer
<result>B</result>
How many factors of 30 are odd numbers greater than 1?