What is the product of all the prime factors of 16?
Choose the correct choice:	A) 108	B) 18	C) 9	D) 6	E) 2
The factors of 16 :   factors are 1,2,4.8,16 Ans - 2*2*2*2 = 16   Answer : 6
<result>D</result>
What is the product of all the prime factors of 16?