What is the sum of all the prime factors of 220 and 330?
Pick one:
A) 15
B) 21
C) 35
D) 41
E) 64
Prime factorization of both the numbers is as follows   220 = 2 * 2 * 5 * 11   sum of the prime factors of 220 = 20   330 = 2 *3 * 5 * 11   sum of prime factors of 330 = 21   addition of both = 20 + 21= 
<gadget id="calculator">20 + 21</gadget>
<output>41</output>
41   ANSWER 41
<result>D</result>
What is the sum of all the prime factors of 220 and 330?