How many odd, positive divisors does 440 have?  Choose the correct choice from the following options:
A) 3  B) 8  C) 12  D) 15  E) 24
Make a prime factorization of a number: 540=2^2*3^3*5 --&gt; get rid of powers of 2 as they give even factors --&gt; you'll have 3^3*5 which has (3+1)(1+1)=3 factors.   Another example: 60=2^2*3*5 it has (2+1)(1+1)(1+1)=12 factors out of which (1+1)(1+1)=4 are odd: 1, 3, 5 and 15 the same # of odd factors as 60/2^2=15 has.   3nswer: 3.
<result>A</result>
How many odd, positive divisors does 440 have?