What is the product of all the prime factors of 22?  Options
A) 18  B) 9  C) 22  D) 6  E) 3
22 , factors are 2,11,1. Now again prime Numbers are Only Two i.e 2 and 11 , this time we would have  2*11= 
<gadget id="calculator"> 2*11</gadget>
<output>22</output>
22   Answer : 22
<result>C</result>
What is the product of all the prime factors of 22?