What is the sum of the different positive prime factors of 320?
Choose the correct answer.
A) 7  B) 10  C) 15  D) 17  E) 21
Prime factorization of 320   =32 * 10   =8*4 * 10   =2*4 * 2*2 * 2*5   =2* 2*2 * 2*2 * 2*5   =2^6 * 5   Sum of the different positive prime factors of 320 = 2+5= 
<gadget id="calculator">2+5</gadget>
<output>7</output>
7   7nswer 7
<result>A</result>
What is the sum of the different positive prime factors of 320?