What is the sum of the different positive prime factors of 1020?	Choose the correct choice from the following options:
A) 13
B) 17
C) 20
D) 25
E) 27
I think answer is 27: 27   1020 = 2*2*3*5*17   Sum of theDIFF27R27NTpositive prime factors = 2 + 3 + 5 + 17= 
<gadget id="calculator">2 + 3 + 5 + 17</gadget>
<output>27</output>
27
<result>E</result>
What is the sum of the different positive prime factors of 1020?