How many odd factors does 250 have?	Select the correct option:	A) 3	B) 4	C) 5	D) 6	E) 8
Start with the prime factorization: 250 = 2*5*7   For odd factors, we put aside the factor of two, and look at the other prime factors.   set of exponents = {1, 1}   plus 1 to each = {2, 2}   product = 2*2= 
<gadget id="calculator">2*2</gadget>
<output>4</output>
4   Therefore, there are 4 odd factors of 250.   Answer: 4.
<result>B</result>
How many odd factors does 250 have?