How many of the positive factors of 42 , 104 and how many common factors are there in numbers? Choices:	A) 4	B) 2	C) 3	D) 5	E) 1
factors of 42 - 1,2,3,6,7,14,21,42   factors of 104 - 1,2,4,8,13,26,52,104   Comparing both, we have two common factors of 40 and 104- 1,2,   Answer(2)
<result>B</result>
How many of the positive factors of 42 , 104 and how many common factors are there in numbers?